PAC SNI-1/3.5 Noise Filter

Wrong product, couldn't use it.

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Crutchfield response on 8/21/2023

Whenever you encounter a problem with anything you purchase from Crutchfield, especially a situation like this, please contact our Customer Support or Tech Support teams right away. They can help you solve the problem or set up a return within 60 days of purchase

works in reverse too!

i bought this because my work pc has a ground loop. i plugged it in backwards so i could use my computer with a set of speakers, and it works in reverse as well

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PAC SNI-1/3.5 Noise Filter

works great, used it on my desk top. I was getting a bad electrical hum from my audio connection for some reason and the noise filter made it go away like magic. Also I received the device the very next day ... I've never ordered somthing on line and got it the very next day,. Outstanding.

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Ground loop gone

This thing worked great. I was feeding audio from a panel source into a GoPro. When I hooked up power to charge the GoPro from the same panel, I got a loud hum. I had created a ground loop. This device fixed it 100%. I thought I was going to be stuck swapping out batteries.

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PAC SNI-1/3.5 Noise Filter

Still has noise but not as bad of winding noise

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Does what it's supposed to.

This thing is fine. I use it for connecting my desktop PC sound card to my receiver via a 3.5mm to rca stereo cable. I used a kabeldirekt 3.5mm to rca cable and I feel like in conjunction with this cable the result is that a lot of the shared electricity noise is reduced even at max volume. Unfortunately going full digital audio output isn't an option for me right now, so something like this is a necessity. If you need one this will work, but don't expect miracles. It also is smaller than I thought and feels sort of light and cheap, but who knows.

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2008 Jeep Wrangler

great product and does not affect volume level or bass level. I would highly recommend it, its great quality and easy to use.

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Goodbye engine whine, hello clarity

I have a Bluetooth adapter in my car that's powered by a 12V plug and then feeds the audio via AUX input. There was a noticeable engine whine anytime the car accelerated. This filter took care of that problem completely. I only wish I had found it sooner!

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PAC SNI-1/3.5 Noise Filter

Plugged right up, ignition noise is gone. Got my XM back. WOOHOO

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Like Magic. . .

The high pitched squeal is gone. I have my satellite radio back! I am so grateful. Many thanks to the reviewer I read who suggested this fix.

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Money well spent

I'm driving a 2019 Freightliner Cascadia with a DD15 Diesel engine and listening to a Sirius XM Satellite radio running through the AUX input jack on the stock radio. It had an awful whine relative to engine rpm through the speakers. This little device eliminated the whine completely.

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Well worth money, delivered in 2 days

No more annoying hum. I have a PC and a good quality Denon DRA-365R amplifier and JBL J2050 speakers. This little gizmo works very well. I listen to my music essentially flat on the equalizer (Amarok in mxLinux) and did not notice any loss of fidelity at low and high frequencies. All of my CDs were ripped to FLAC. Motherboard is F2A88XM-HD3 Gigabyte with Realtek® ALC887 codec and it touts high quality audio which my ear agrees with. A bit plus is there was no loss in volume; it might have actually increased slightly due to the 1:1.3 turns ratio on the channel transformers.

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PAC SNI-1/3.5 Noise Filter

Everything you read tells you that ground loops are to be avoided. If you are using the car oem wiring harness you may not be able to do this. In the event you try all the steps to eliminate it and fail this will help tremendously. It will not filter out alternator whine but it does remove the ground loop static and pops. installation couldnt be easier and the small size tucks away nicely.

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PAC SNI-1/3.5 Noise Filter

I installed this between JBL Bluetooth and radio mic. Imput no longer hear car motor noise thru speakers

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Worth the investment!

Good product to own. It does it's job to provide clear cut sound and quality when listening???? to music ??. I have no complaints

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Simple, inexpensive and it works!

I was getting odd, scratchy noise from my iPhone connected to the aux port on my Prius, but only when the iPhone was also connected to power from the "cigarette lighter" jack. This product eliminated the noise without degrading the sound. It's great when a simple, inexpensive solution works this well! Installation is trivial.

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0 noise after installation

Worked perfect! The humming through my video input (2005 STS) was driving me nuts. Installed this in like and silence; tanks for recommending it!

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Works perfectly !

Works perfectly. Very well made and solid. Much better than my first attempt that had to be returned. Then I wised up and came to Crutchfield.

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Saved My Podcast

I produce a podcast and use 2 computers and a mixer to record the show. Long story short, i had a ground loop that generated so much background noise it was pointless to use the mixer. I bought 4 of the PAC SNI 1/3.5, one for each line and the difference was amazing! I hear a huge difference and so does my audience. Worth every penny!

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PAC SNI-1/3.5 Noise Filter

This filter removed the ignition noise that was being picked up by my satellite radio in my truck. I am very happy with results.

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PAC SNI-1/3.5

This filter is the best if you have alternator whine. When using the headphone jack and charging at the same time, this eliminated that annoying WEEEEEEEEEE. For the cost it is worth trying before rewiring your system like I did. Give it a try and save yourself the headaches I did before you rewire.

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PAC SNI-1/3.5 Noise Filter

This noise filter did not help my problem at all. I actually made it much worse. Not only was I still able to hear all of the noises that had been there before adding the filter, but now the music volume and sound were like going from stereo to mono. Waste of time and money. The only reason there is 1 star is because the rating could not be submitted with 0.

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Crutchfield response on 5/22/2017

We're sorry you're having problems with your noise filter. Whenever you encounter a problem with anything you purchase from Crutchfield, please contact our tech support team right away. They can help you solve the problem or set up a return within 60 days of purchase. We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

Marked improvement

Helped reduce alternator whine, did not entirely eliminate (2001 Accord with aux adapter plugged into CD changer socket on factory radio) Definitely worth its cost.

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PAC SNI-1/3.5 Noise Filter

It works perfectly no more noise in my bluetooth system

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PAC SNI-1/3.5 Noise Filter

My iPhone, when connected to my car's aux input 3.5mm jack, was exhibiting loud buzzing when charging along with my car charger. I was skeptical of this device, since it doesn't have a third connection for a grounding cable. However, it reduced the buzzing to almost zero. I'm glad I took the risk with this device and it returned my car to clean-sounding-audio.

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PAC SNI-1/3.5 Noise Filter

Does just what they say it will do.

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PAC SNI-1/3.5 Noise Filter

IT WAS EXACTLY WHAT I NEEDED.

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PAC SNI-1/3.5 Noise Filter

Purchase to prevent engine RPM noise through radio deck due to ground loop from my Sirius Radio worked perfect

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Ground loop filter

Had a buz noise when using a head phone jack from a 29" 120v tv through my alpine head unit with two alpine amps. No noise on any of the other sources but as soon as you select aux (tv) you get the buz noise. This filter reduced the noise to almost nothing.

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PAC SNI-1/3.5 Noise Filter

Removed alternator whine 100% from Garmin XM radio on my Goldwing.

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Did Its Job

In a word.....Simple. Plug it up and allow the silence to wash over you. I've used several and they have all been amazing.

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Excellent

Worked perfectly!!!

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Good Product

This device did exactly what I needed it to do. I installed an Audiovox Mediabridge in my 2006 Honda Accord. When I hooked up my external Sirius XM radio to the auxiliary jack on the Mediabridge, it would produce a whining/hissing noise, due to a bad ground wire. The noise was very annoying and made listening to made satellite radio unbearable. Once I hooked up this device the noise was gone. Occasionally, the audio will go in and out, which might just be due to a bad auxiliary cord on my end. Would personally recommend this product.

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Alternator noise

It works an does a great job at it best filter I have ever had good investment if you got a ground noise

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Works great

Does what it says.

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Works Great

Perfect solution to an annoying problem.

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Worked perfect

I had a terrible noise on the boat radio when I played the iPod and charged it at the same time. I put in the noise filter and everything works fine.

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eeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Did the trick. Eliminated whine

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Like everyone says it works seriously!

This really works and its inexpensive. What a great solution!

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IT WORKS

For those of you who are running a portable device (for me it's my Sirius S50 radio) and getting crazy interference from the car, such as accelerating the gas pedal or power windows, this noise filter does work. I was doubtful at first, but I took a chance and ordered the unit. Got the unit in the mail and hooked it up in 2 seconds and BAM. No more background whining noise. The only thing that I think it might also affect is the sound. It appears it makes the sound not as rich as the sound was meant to be. Seems to have a tad bit more treble, but not enough to not get this unit

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PACSNI

does that it says it will to. Killed the alternator wine in my 66 Mustang when using my Ipod

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Peace at last

I admit my hearing isn't the best, and to be honest the hum that this eliminates didn't bother me that much. My wife, on the other hand, has great hearing and I could never use my xm radio with her in the car. The high pitched hum would literally give her a headache. After about 20 minutes I would have to turn the radio off. As soon as I plugged this in she said she couldn't hear the hum at all. Now I have peace at last.

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BUY ONE!!!!

I have tried just about everything. This is the only thing that really works. NO MORE HUM!!! PRICELESS!!

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WORKS RIGHT THE FIRST TIME!

This was so easy to install in my Lexus IS250's aux input. Whenever I had my iPhone hooked up to both my car's aux input for music and the cigarette lighter for power, I got this annoying alternator whine. This PAC SNI-1/3.5 Noise Filter solved the problem instantly! Many thanks, Crutchfield, for letting me know this product even existed!

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No effect on audio feedback

Sounds like a great idea, but it didn't work. I'm getting feedback in my 2010 Mazda 3 when I have my iPhone charging and plugged into the aux at the same time. This product did nothing to reduce the feedback.

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Poorly made, cheaply produced

Can they not make these things right, ever? This is the second piece of car audio equipment I've bought in the past few days that is broken. Loose wire causing crackle and shorting. Poorly manufactured. Lame.

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Got rid of the hum

Whenever I listened to my mp3's while driving, I would get this annoying hum if a) the phone was plugged into the Aux port AND b) the phone was connected to the car charger. The hum disappeared if i disconnected the car charger. This was fine for short trips, but not for longer road trips. I heard a ground loop isolator would solve the problem. Plugged it in and voila, no more hum.

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great simple solution

This worked great for me. I run my Sirius satellite radio directly into an auxiliary input adapter in my car to avoid using the FM transmitter. I had a constant buzzing/whining sound coming through the speakers, and this device completely got rid of it. It was a no hassle install and well worth the money. Consider me a satisfied customer.

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Bad Sound quality

I purchased this product because it got such high rating. However, I was disappointed in the sound quality. It does eliminate the engine whining noise. It also eliminated the low and high frequency from the music. In that respect, if you only use this for talking on the phone then this product works just fine for you. However, if you want to listen to the music from your phone, the music may not sound very good. I found out the hard way that the solution is much easier then you think. When this product didn't work as good as I wanted, I then look for alternative. All I have to do was to make sure the negative wire to the cigarette lighter is properly grounded.

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Works like a charm!

I use my iPod Touch as the user interface for my XM radio along with the dock that connects the antenna and powers the iPod, etc. The fm transmitter of the dock is not very effective, so I used a separate, much better transmitter. However, when I connected the two, the ground loop was obnoxious. After taking less than a minute to plug in this noise filter, the ground loop was gone, and my sound is impeccable once more!

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Excellent product, excellent service.

Bought it for my Mazda 3 and worked great. Guys at customer service were very helpful making my payment with international credit card. Thanks a lot.

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Worked as advertised

Golly, what a difference! Instead of the insanity created by constant alternator whine, I now have a clean signal. With regard to those that say they lose some fidelity, I didn't really notice any loss. The signal was so bad anyway, how would you be able to tell? Thank you Crutchfield. Good service and speedy delivery.

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Excellent Product and Service

This filter does exactly what it is supposed to. All the noise when using the AUX IN, that I've suffered for the past 3 years, has now gone. Period. Service buying thru the Canadian Web site was excellent: ordered Sun Dec 6 @10 am; delivered the morning of Tues Dec 8. An Excellent company to buy from.

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Negatively affects sound quality

I purchased this filter to eliminate background hissing noise caused by a ground loop when connecting my iPod to the DC power jack of a 2006 Prius. It got great reviews, so I was surprised and disappointed to find that it negatively affects the sound quality of my system. This is most noticeable at higher volumes and at certain bass frequencies; however it is also noticeable at any volume whenever the sound becomes very full. This seems to overload the circuitry and produce crackly noises (similar to blown or overdriven speakers). Furthermore, I've noticed that music generally sounds less pure even when this particular distortion is not evident (I've unplugged and replugged several times to make sure that this isn't simply in my head.). I'm a discerning listener, so both of these issues are annoying. So, in summary, although this product eliminated my ground loop problem, it introduced other annoying problems. As a result, I unfortunately can't recommend it.

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Works as advertised

Used on my Peterbilt truck. Works perfect. I first tried a new audio cable with no luck, and was almost ready to completely rewire everything when I came across this cable. I have no complaints. If you have a noise problem, buy this!

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Wow. It just plain works.

I had real bad alternator whine when I ran my Sirius through the 3.5mm jack of an AudioLink adapter that goes into the CD changer port of my '07 Miata's Bose HU. I'm usually worried about passive filters and what they can do to audio quality but this little box totally wipes out the whine AND leaves the signal unchanged IMO. In fact there's a touch of extra gain. I must assume that the few people who reported frequency response problems must have received a defective box. I hope they all first called Crutchfield and tried a replacement before blurting out those bad reviews. I'll slightly qualify my review by saying my alternative to this setup is the Sirius FM transmitter. So even if I lost a little frequency response with this box in-line, it is still far better sounding than my alternative.

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Does what it says it does!

I have XM connected to a boom box. The stereo was making allot of hissing noises and some high pitch sounds. Twice there was an audio spike that burnt up the audio board in the Delphi receiver. I can tell a HUGE difference since purchasing this little gem. If you have XM and are using the line out jack, you want this!

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Great product!

I use this for my portable Inno XM player and it works like a charm. Before I used it, I had some nasty sounding ground noise whenever I 'd hook up the Inno to my "Aux In" on my head unit. I could always crank up the volume and drown the noise out, but I shouldn't have to do that. This thing effectively eliminated all ground loop noise. Awesome product!

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PAC SNI-1/3.5 Noise Filter

Item does exactly what it is supposed to do. I installed it in the auxiliary input line and it eliminated the high-pitched alternator whine that had plagued my for several weeks.

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This little thing is a savior!

Like everyone else that wrote a review for this, I had a whining noise when I had my iPod plugged into the 12v outlet in my SUV. It drove me insane until I came to Crutchfield and did a search and came across this magical little devise. ( I have a Dual brand stereo with the rear auxiliary input with iplug connector) The noise was only present when my iPod was plugged into 12v power, so I knew it was either wiring interference or alternator whine.....the PAC Noise Filter took care of it ALL....literally took me 2 minutes to plug it into my stereo cable running from my iPod to the iPod connector that came with the Dual stereo (or auxiliary input jack on some stereos) and tucked the PAC Noise Filter behind my stereo in the dash. Great item for great price!

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Works with laptop hooked up to home stereo

Excellent widget. I was tring to listen to music from my laptop on my cheap Sony home theater stereo by running a line from the laptop headphone jack to the stereo's audio in line. It was so noisy and buzzy that I couldn't stand it. I mean really really loud. This filter eliminated ALL the noise, and has the right 1/8" jacks on both ends so I could plug it right in. Very very pleased.

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Nothing short of Spectacular

First off I have never writtten a review on anything before. To preface I bought an adapter for iPhone and iPod, for my iphone and Lexus IS250 AWD. As soon as Plugged everything in there it was the hissing, winding sounds coming from the ground. Frustrated i began searching the internet for an isolator, and I landed here. had it over nighted and justdropped it into the car. Upon starting the car with fingers crossed I waited to hear even the slightest of noise coming from the speakers, NADA. This unit has completely gotten rid of and feedback I once had.

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PAC SNI-1/3.5 Noise Filter

This little device is just what the doctor ordered! They are easily taken apart to shorten the leads or add jacks. The little amplifier in the circuit replaces the audio volume lost to the transformer. I am using them to isolate audio circuits to an Autocom intercom on a motorcycle. They work flawlessly.

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Solved noise problem with iPhone in Prius

I have a 2007 Toyota Prius. When I hooked up my iPhone to the AUX IN jack, I encountered interference noise. Some web searching led me to various forums suggesting this gadget from Crutchfield. I purchased it, hooked it up, and the noise went away. Perfect solution. The only thing I wish it had was two male plugs instead of a male/female. That way, it could be used to directly connect between the device and the AUX IN jack without me needing to buy a separate cable. For others, though, this path-thru arrangement may be ideal.

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Works perfectly

I just got this based on reviews here on Crutchfield. Couldn't find it anywhere in town so I was hesitant because I didn't want to have to return it. I drive a 2006 Prius and this thing works flawlessly. Now I can charge and use my iPhone/ iPod classic without that horrible whining noise- and no I don't mean my wife :-)

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AWESOME!!!!

I was skeptical at first, but i decided to give this product a try after reading the reviews. i have a Mazda 3, and my Sirius Starmate 4 was being connected directly to the AUX input in the center console. Had alternator whine in the system since day 1. I tried re-routing all of my cables to seperate them from noise producing conductors with no luck. i installed a Sirius hardwire power supply to make sure everything was grounded with no luck. Then i put in a power line noise filter with no luck. Even tried multiple sets of magnetic ferrule chokes with zero difference as well. Then i bought this noise filter... This item was the first product i have ever seen completely eliminate 100% of the alternator noise!!! BUY IT!!!! IT WORKS!!!!! Don't know how it works, but it did the job. I wish i had known about this a long time ago. I spent 8 months fighting to get rid of the noise. Tell your friends and family, this will work!!!!!!

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Great!!!

Bought this after trying several others. I tried the power filters and audio filters, some costing twice as much as this one. I finally tried this one and WOW! It worked. I have it installed between the satellite radio and the aux input of my 2004 Honda Goldwing. I had the whine from the alternator. Now I don't. If you need to get rid of alternator whine, this is it! Thanks Crutchfield for great prices and fast shipping.

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Works great!

I had a persistent problem with static noise when music was not playing or the computer was sleeping. This little gizmo fixed it real good. Now perfectly quiet.

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PAC SNI-1/3.5 Noise Filter

Awesome product. Works great as previous reviews have stated. Had a Sirius radio plugged in acc. jack and had an alternator whine, especially on news channels. This solved it and very easy to install.

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PAC SNI-1/3.5 Noise Filter

Great product! It worked as it said it would. I used it to filter out an annoying hiss from my XM radio to a new radio I had installed in my Sequoia. My issue was easily and instantly resolved!

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Works, but...

Took the engine noise out of the line, but also took all the lows and highs out also.

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Works like a charm!

Our new 08 Kia Optima has an awesome sound system with an AUX input. When I plugged the satellite radio into the AUX jack there was a terrible whine that changed pitch with engine RPM. It was most noticeable on talk channels and quieter music channels. I plugged this little gem in and the noise was totally gone. There was no noticeable degradation in the sound output.

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It works

I have a 2007 mazda 3 that came with an AUX connection. When I attached the charger, it would generate audible interference...this solved the problem.

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This really does what it is intended to do....

I have used this product several times, and it as not let me down once. I recently used one to get rid of alternator whine, and various other noise in a system. I decided that this was a much cheaper option than pulling various parts (and possibly the engine) out to get to a very hard to reach alternator to install a capacitor. Well worth the money!!!!!

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Gets rid of the buzzing sound

I have a 2007 Toyota Camry SE, and have always been annoyed that I can't plug in my XM radio directly into the aux jack (high-pitched whining sound occurs when I do). It was almost like the connection wasn't grounded. Very frustrating. I had to use the FM station converter, and the sound quality was not that great. THIS PRODUCT IS AN AMAZING, EASY AND INEXPENSIVE FIX!! For less that $20, plug your XM radio into it and then into the aux outlet for no static noise and good sound. HIGHLY RECOMMEND!!

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AMAZING!

Doubters beware! This product is phenomenal. I own a Mazdaspeed6 and installed a product called audiolink which adds an auxilary port to my car. I have a bose head unit. When i hooked up my ipod to the audiolink device, there was no static at all. Then, i hooked my ipod to a power source within the car, and thats when the static noise kicked in. It was loud and just irritating. I then bought a Ground loop isolator and it was worthless! I finally came across this device from crutchfiled and all I gotta say is, I am amazed. It has gotten rid of ALL static noise. NOTE: I am not some one who usually signs up on websites to write reviews. But, after months of frustration and finally finding a product that works, I felt the need to spread the word. all I gotta say is BUY IT!

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THIS IS IT!!!

All I can say is that 5, that is right FIVE filters later, I found the solution. This thing is amazing. Not only within the same price range as the previous filters tried from local car audio installers and another online vendor, but this actually works. This was being used in a carputer application and I was getting TERRIBLE ground loop noise on the analog audio line. Even at low volumes, I was hearing the ground loop. Now, even at the higher volume, it sounds the way it did at the lower volume. There is no way I could ever turn the volume up that loud. So at the normal range that I would listen at, you cannot even hear a hum. Awesome job PAC. Crutchfield also came through with next day delivery of the goods, even when only ground shipping was selected. I guess they have a local distribution center. Awesome!!!

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Problem Solved!

If you are experiencing the alternator whine problem as myself and the rest of the reviewers here were, this is the product for you. After installing the SNI-1/3.5 Noise Filter in my car for my iPod (which took about 5 seconds) the alternator whine was not just reduced, it was completely GONE. Also, there was no loss of sound quality. As another reviewer stated, I did notice a little reduction in the "highs" but it wasn't anything a little adjusting of the equalizer couldn't fix. I highly recommend this product to anyone with the alternator whine problem. I also highly recommend Crutchfield. Great prices and fast shipping. It took 2 days for me to receive my order with standard shipping.

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Works Perfectly

I recently installed Sirius radio in my 2008 Toyota Solara. Unlike previous vehicles I owned, the Solara has an auxiliary input jack, which is the best method for feeding audio into your factory system from an external source. The problem was that I had the Sirius wired into the auxiliary power input outlet right next to the audio input and there was terrible alternator whine. I installed this puppy in 15 minutes (it's behind my dash board) and now my audio is crystal clean. Thanks Crutchfield.

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PAC SNI-1/3.5 Noise Filter

This product is amazing...I was totaly blown away with how well this resolved my hissing and atlternator whine. Simply plugged it in like the directions said and it was GONE! I used this on my 1997 Honda Valkyrie motorcycle. I was trying to run a Sirius Satelite reciever and couldn't stand to use it because of the whine and hissing. I love this product...it really works. Now I can ride all summer and enjoy my Sirius radio.

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I was really frustrated!

I installed a Garmin Nav system (with built-in MP3 and XM ) as well as an IPOD connector into my Mazda 6 2006 . The IPOD was GREAT! The AUX i/P for the Garmin (MP3 and XM) was terrible - hissing and engine whine - really bad! I bought a ground loop device - no good. I bought another ground loop - no good! I found this site and these reviews and had serious doubt! I went for it, just installed it and it's GREAT! All my problems are GONE! Yes it does reduce the quality of the highs a bit - not by much! It's the best thing since sliced bread. Joe

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It Works Great!

Like many of the other reviewers here, I was running Sirius satellite radio (Starmate Replay, hard-wired via a stereo mini-jack cable) through my aux port on my 2007 Toyota Camry. The high-pitched whining, which varied in pitch as the engine RPM varied, was so bad that I didn't want to use the Sirius radio anymore. I had tried a "shielded" cable from Monster but it made no difference. I bought this product from Crutchfield after reading all of the reviews. It took about 10 seconds to install. Now I can't detect any whine at all! It works equally well when my wife's Ipod is attached. Definitely worth the money, since anything playing through the aux port was basically unlistenable before, unless the car was at idle. Now it sounds great.

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good product

I wired a sirius Sportster 4 into a AUX in device in my 06 4Runner. There was a hum. This filter completely removed it.

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No more whine

I have never seen a noise filter work this well. I had serious alternator whine with my new Sirius radio plugged into the aux input on a iPod DiCE in my BMW. There is now only the faintest whine, but you have to turn the stereo all the way up and the sat all the way down to just barely hear it. At normal listening levels it is completely gone. Even on talk radio!!!

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Ground Loop noise gone for good!

I'm using a MIO C520 in my 2007 RAV4 LTD plugged in to the AUX jack. I've tried ground loop isolators for over 15 years and nothing works as effectively as this unit. I expected the noise to be reduced but instead it was completely gone or not discernable to my ears even with amplification. This product is truly amazing.

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No more whine!

I'm an over the road truck driver. After getting a radio in my truck with the aux input, I plugged my Sirius receiver in... Oh Dear God. It was almost as brutal as driving through the desert with no radio at all! I knew there was one place and one place only to look for the fix! Thanks Crutchfield!!! PS. I've been asked several times out on the road, what can be done about this on the CB. I tell them Crutchfield.com

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No More Whining

After reading several reviews, I decided to buy this item since I've been experiencing a high pitched whine in my speakers as I drive (the faster I went, the louder it became). I admit, I was doubtful about my purchase at first. After receiving my package (incredibly fast BTW), I installed the module and was pleasantly surprised with the sound quality. Even as I cranked up the volume, there was no distortion whatsoever! (To me) it sounded like i popped a regular CD in my player. I would recommend this product to anyone who has a satellite radio or mp3 player plugged into an AUX port & using a cigarette lighter adapter. I couldn't be happier with my purchase!

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Crutchfield response on

PAC SNI-1/3.5 Noise Filter

I bought a toyota rav 4 2007 with the aux input. I have had sirius radio for over 2 years, and have waited for the day that i could bypass the Fm transmitter. But to my disapointment, that annoying hum that everyone describes in great detail blaired through my system. After doing my research I came across this product, ordered it and 24 hours later it was at my doorstep....I hooked it up and wallahhh! NO MORE NOISE!!!!!! crutchfield rules.

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You won't hear me whining anymore! ;)

I give Crutchfield & This Product 5 Stars!!!! 1) Quick Shipping. 2) Fantastic Customer Service(up to date status,etc.) 3) Extremely Helpful Customer Service Reps. 4) Easy as cake to install. 5) Product works perfectly!! *If you are hesitating about purchasing this product, DON'T...The quicker you order this product the quicker you'll be in heaven listening to your Sirius Radio or iPod. This has put to rest so many frustrations.

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No more whine....Hallelujah!

I have a 2006 VW Touareg with the built-in AUX ports in the center console. Using any of my MP3 players or my Ipod with the RCA cables in the AUX and also charging thru the 12v adapter caused an awful whining noise which seemed to be speed dependent....the faster I went, the louder the whine. If I unplugged the charger and used the battery only, the noise would disappear. This very simple-to-use device did the trick. I can now play and charge at the same time in peace!

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A World of Difference!

I'm so happy with the noise-reduction this filter achieved!! I run my iPod through the AUX-in jack in my Prius, while powering the iPod off of the AC/"cigarette ligher" outlet. The hum/whine that was constant before, is now completely gone. (I'd used an iPod FM transmitter before for about 5 years, while powering the iPod off the AC outlet in my Honda Accord; when I got the Prius, with that built-in AUX-in jack, I wanted to eliminate the FM transmitter entirely and stop searching for "empty" FM frequencies. But I was disappointed with the power-outlet hum, right away.) My first filter arrived and seemed to be fine for a day, until I hit a bump in the road, that jostled all the contents in my armrest compartment, and the sound suddenly got all watery and thin. I thought the iPod was dying, but went through the whole setup, from iPod to filter to 1/8" male-male connection wire; traced the problem to to a loose internal wire/short, where the wiring meets the female jack head on this filter. Crutchfield immediately sent a replacement, and it has been perfect. I definitely recommend this product!

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Crutchfield response on

PAC SNI-1/3.5 Noise Filter

Installed Sirius Starmate 4 in new 07 Toyota Rav 4, connected to AUX input. The humming noise that changed pitch with engine speed was terrible. I found this searching the net for filters, ordered 2, one for Toyota and one for future use. It works great, highly recommend this product

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Crutchfield response on

Completely eliminated hissing (my car) whining (wifes car)

My wife and I both have 2006 Scion xB's... we also both have Sirius Starmate Replay units connected to the factory aux port. My wifes car had a horrible engine whine & my car had a hiss (and slight whine). I bought two of these, installed them in both cars, and the sound is now crystal clear. EASY install - definately recommended.

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PAC Noise Filter-Worth Every Penny I Paid for it!

My girlfriend and I both have Sirius Radio's. We have a Nissan Altima and an Xterra. I installed the Radios and hardwired them using RCA to mini-jack cables. After the install, there was a LOUD whining noise heard through the speakers in both of our cars. (My Altima was much worse than the Xterra.) The noise got even worse while accelerating and driving at highway speeds. After I almost returned my radios, I found this noise filter on Crutchfield. I decided to buy 2 of them to see if they would fix the problem. After I installed them in both cars, the noise completely dissappeared. My Sirius Radio now sounds like I am listening to a CD! No fuzz, hissing, or whining whatsoever. I completely recommend this to anyone who has a whining noise when listening to their iPod or Satellite Radio in the car.

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Crutchfield response on

Perfect for Mazda 3 owners

I have a 2007 Mazda 3 with an AUX jack/Bose system/amp. If I used my iPod with a 12v charger I would get unbelievable engine noise/interference through all speakers. I had almost given up hope until I found this product. Got it yesterday and it works like a charm- the noise is 100% GONE. The best part about this is that no modification has to be made to the car at all, and since my AUX jack is in my center console- you don't even see the very small box. As far as I'm concerned.. every Mazda 3 owner with an AUX jack should purchase this right away. This is a known problem for the car which has been posted in a few Mazda 3 forums.

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Just as Advertised

I contacted Crutchfield with a feedback problem and they immediatley suggested this product. Ordered it one day, received it the next, and I am now listening to my Sirius radio in CD quality (or close enough for my untrained ear).

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Crutchfield response on

PAC SNI-1/3.5 Noise Filter

This thing works great!!!!!!

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Crutchfield response on

Noise Filter