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PAC ROEM-NIS2 Wiring Interface

Connect a new car stereo and retain the Bose amplifier in select 1994-2012 Nissan and Infiniti vehicles

Item # 541NIS2

Find what Fits your car

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Item # 541NIS2

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About the PAC ROEM-NIS2 Wiring Interface

PAC ROEM-NIS2 interface

PAC's ROEM-NIS2 radio replacement interface lets you replace the factory radio in select 1994-2007 Nissan and Infiniti vehicles, without losing the Bose® sound system. The interface's design minimizes noise and static. Warranty: 1 year.

What's in the box:

  • Radio replacement interface module
  • Vehicle harness
  • Radio harness
  • Instructions

Customer reviews

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PAC ROEM-NIS2 Wiring Interface reviews

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Crutchfield response

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More details on the PAC ROEM-NIS2 Wiring Interface

Stacey B.
The PAC ROEM-NIS2 Wiring Interface replaces these items:

Product Research


Radio Replacement Interface: The PAC ROEM-NIS2 facilitates the replacement of the factory-installed radio in select Nissan & Infiniti vehicles with an aftermarket stereo, while retaining the function of the factory premium amplified audio system by Bose.

Vehicle Compatibility: The PAC ROEM-NIS2 is compatible with the following Nissan & Infiniti vehicles featuring a factory installed premium audio system by Bose.

Make Model Year
Nissan 200SX 1995-1998
240SX 1995-1998
350Z 2003-2007
Altima 1995-2006
Frontier 1998-2006
Hard Body Truck 1995-2007
Maxima 1995-2006
Pathfinder 1995-2006
Sentra 1995-2006
Titan 2004-2006
Xterra 2000-2006
Infiniti G20 1999-2002
I30 1995-2004
I35 2000-2003
Q45 1994-2001
QX4 1997-2003
Note: In most vehicles that use this adapter, the ground wire of the new receiver will need to be connected to the metal of the dash.

Adjustable Gain: This 4-channel radio replacement interface will allow your new aftermarket stereo's output to be adjusted to the input requirements of the existing factory installed amplifier, providing 2:1 gain and infinite attenuation.

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Customer Q&A

13 questions already asked

Would this work on my 2005 Pathfinder with Bose to keep that Bose and switch original radio to cheap Double Din Android Unit from Amazon?
[ Martin  Oct 07, 2020 ]
1 answer
This interface will work in the 2005 Pathfinders that have the stock Bose system but do not have factory installed navigation. It works to install any universal aftermarket radio into the vehicle. It sounds like the radio you describe is a universal model (not vehicle specific model) and should work
[ Paul  Oct 25, 2020 ]  Staff
I bought this for my 06 g35 sedan. Wired it as instructed. But head unit won't come on when turning the key to accessory. Am I missing something?
[ Crown  Aug 05, 2020 ]
1 answer
I would check to see if your getting voltage from your signal wire with the key on. That's what tells the head unit to turn on
[ Michael  Aug 05, 2020 ]
My 02 G20 has a cd changer tried a regular harnes. Needed the cd changer harness hooked up as well hopfully this harness works?
[ ANDREW  Jun 11, 2020 ]
1 answer
CD changers that can be controlled by the stock radio will no longer work with an aftermarket radio installed. I wish I had different news for you on that
[ Paul  Jun 30, 2020 ]  Staff
2001 Nissan Maxima why want it fix ?
[ lacoure  May 02, 2020 ]
1 answer
For vehicle fitment and compatibility information, please chat with an Advisor online or by phone at 1-800-324-9695.
[ Jess  May 24, 2020 ]  Staff
Will this work with 2012 Xterra pro4x with Rockford fosgate stereo? Wanting to install JVC 740bt.
[ Rebecca  Oct 07, 2019 ]
1 answer
Yes that is the correct harness for that vehicle to retain the factory amp. We also recommend a dash kit, and steering wheel control adapter (if you need them). You can connect with one of our product advisors to make sure you have a complete cart:
[ Cosmo  Oct 18, 2019 ]  Staff
if my 2004 pathfinder amp is not working and I install a new stereo, can I bypass the factory bose amp and still use the bose speakers?
[ koi4fun  Sep 08, 2019 ]
1 answer
If you replace the factory headunit and bypass the amplifier, we recommend replacing the factory speakers with aftermarkets, so you don't risk damaging the new head unit.
[ Calvin  Sep 27, 2019 ]  Staff
how do i connect rca plugs from this Alpine stereo into 2004 pathfinder factory bose speakers/wiring harness?
[ koi4fun  Sep 08, 2019 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  Sep 17, 2019 ]  Staff
The instruction says the low level inputs are for radio up to 25 watts x 4. My Pioneer says it's 14 x 4 RMS but 50 Watts Max. So do I use the low levels or the highs? Instructions aren't quite clear.
[ Mark  Sep 01, 2019 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  Sep 10, 2019 ]  Staff
My 2010 frontier has a Rockford Fosgate system, this unit- which apparently Crutchfield is recommendong - says it allows you to use the stock Bose amp. Do I have a Bose amp and do I truly need this?
[ J  Apr 30, 2019 ]
2 answers
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
[ Krissy  May 08, 2019 ]  Staff
While the description for the harness does state Bose, it is also used to retain other factory amplifiers as well, such as the Rockford Fosgate amp in your truck. The harness is needed to retain the use of the factory amp.
[ Calvin  May 01, 2019 ]  Staff
Installed in 03 Altima but volume is extremely low. It says let's you keep the Bose Amp but my car doesn't have the Bose system. Is there a different adapter for the car without an amp?
[ Jerry  Feb 03, 2019 ]
7 answers
If your new radio system has an option to turn on and off the internal app inside the radio make sure it is turned on, I had the same problem, if I turn my app off then I get almost no sound through the speakers, but if I turn it on it's as loud as can be. Just to be clear I am talking about the app that is built-in to the radio not the one built into the vehicle
[ Armando  Feb 08, 2019 ]
I did not use this in the 03 Altima. I just wired directly to the wiring harness.
[ P  Feb 07, 2019 ]
On my g35 with Bose system there was a choice on harness selection, with or without Bose system
[ RALPH  Feb 07, 2019 ]
I HAD a Bose system (that died) but no Bose Amp. I used this same interface on my Infiniti plus I had to buy a new stereo. It works great, very loud. Perhaps you got a defective interface?
[ Jose  Feb 06, 2019 ]
I think if you don't have the Bose system, then you just need the regular wiring harness vs the Bose adapter and the regular wiring harness. I would call cruthfield if your still having issues.
[ Eric  Feb 06, 2019 ]
Try and turn the volume up on factory stereo before disconnecting it (turn volume to full then turn key off)
[ john  Feb 06, 2019 ]
I'm pretty sure if you're installing a stereo in a non Bose Altima you need a wiring harness not an imterface. The whole point of an interface is to retain the amplifier and make sure the speaker signal is not being amplified by both the stereo and the amp
[ Michael  Feb 06, 2019 ]

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