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Customer Reviews

PAC LPHHD04 LocPro Advanced T-Harness

PAC LPHHD04 LocPro Advanced T-Harness T-harness for adding an aftermarket amp, LOC, or signal processor to select 2016-up Hondas without a factory amp

MFR # LPHHD04

5.0 out of 5 stars
22 reviews
View this product
Worked great in my 2019 Honda Civic Sedan Sport (no center speaker and

Ray from Sun City West, AZ on 7/1/2025

2019 Honda Civic

Verified customer (What's this?)
Verified employee review (What's this?)

Worked great in my 2019 Honda Civic Sedan Sport (no center speaker and NON Amplified)

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

PAC LPHHD04 LocPro Advanced T-Harness

David from Soddy Daisy, TN on 5/26/2025

2025 Honda Civic

Verified customer (What's this?)
Verified employee review (What's this?)

2025 Honda Civic Hatchback with standard audio. This device installed and worked perfectly for adding a Sony ES series XM-1ES. We used the speaker out puts to RCA adapter similar to Kicker 46KISL but not that brand. We removed the head unit installed the harness per the instructions and tucked it neatly into the dash. Perfect fit. Now for the speaker wires to RCA me mindful of the wire with the stripe down the wire. Some manufactures it is the positive wire and others a negative wire. You can find that information on Crutchfiled for your car.

Pros: Easy installation.

Cons: A little pricey for wires but you get what you pay for.

Crutchfield response on

0 of 0 found this helpful

Massive time saver

Carmen from Riverside, CA on 1/19/2025

2017 Honda Civic EX-L

Verified customer (What's this?)
Verified employee review (What's this?)

Fantastic product! This is by far the easiest way to tap into the existing speaker output of a 2017 Civic hatchback. Specifically, I used this T-harness in an EX-L trim model with a non amplified factory system. I was able to connect speaker level outputs from the factory system directly to an external amp without cutting any factory wires. Even better, Crutchfield provided very detailed installation instructions for my specific vehicle. The amp now powers a set of aftermarket front door speakers and a single 8" subwoofer. I left the rear door speakers powered by the head unit. Without a doubt this harness saved me a ton of time and headaches. Great service and fast shipping as usual by Crutchfield.

Pros: Saves time, avoids cutting factory wires, wires clearly labeled, good value, allows for a very clean install.

Cons: None

Crutchfield response on

0 of 0 found this helpful

Fits 2024 Accord Hybrid EX-L (non-amp)

Philip from Valrico, FL on 12/11/2024

2024 Honda Accord Hybrid

Verified customer (What's this?)
Verified employee review (What's this?)

Used on 2024 Honda Accord Hybrid EX-L (non amplified). There was some confusion as to whether this would fit my application. Well, it worked like a charm. Don't skip this. I didn't want to cut up any factory wiring and didn't have to!

Pros: No need to cut up factory wiring.

Cons: Zero!

Crutchfield response on

0 of 0 found this helpful

Where was this when I needed it...

Lloyd from Ft. Myers Fl on 11/20/2024

Verified customer (What's this?)
Verified employee review (What's this?)

So, a while back, I purchased an entire system for my 2019 HRV. I got an amp, full set of speakers, tweeters, and an AC LCI 7-Pro. If I was aware of this product, I WOULD HAVE BOUGHT IT! I made several calls to Crutchfield customer support concerning the complex wiring in the back of my radio and trying to figure out which wire to cut (which is its own little hell). Had the tech support people informed me that this product existed... it would have not only made the install process less stressful, but it would have also cut HOURS of time from the install process. I love Crutchfield's service, and overall, I have been extremely happy with their support. However, I feel like they dropped the ball with me on this one. That is why I will give them 3 stars. My install was successful; however, I really could have used this harness to ease my installation.

Pros: Avoid cutting factory wires...

Cons: It was not recommended

Crutchfield response on

0 of 3 found this helpful

2025 Honda CRV Hybrid Sport L

Crutchfield customer from USA on 11/20/2024

2025 Honda CRV Hybrid

Verified customer (What's this?)
Verified employee review (What's this?)

2025 Honda CRV Hybrid Sport L. This product does work properly for integrating aftermarket signal processors or amplifiers into the OEM system. The radio is somewhat difficult to access because it is buried in dash behind the climate controls. In order to reach it the shift knob has to be removed and the section of center console with the shift boot and USB ports must be pulled off. Then it is possible to get to the correct plug from the bottom of the unit. Once that is accomplished the PAC T-harness can be installed.

Pros: Does what it is supposed to do.

Cons: Price of the harness is a little too high, but as of November 2024 there is no other option.

Crutchfield response on

4 of 4 found this helpful

PAC LPHHD04

Francisco from Murrieta, CA on 8/18/2024

2021 Honda Civic

Verified customer (What's this?)
Verified employee review (What's this?)

Exactly what I needed to install an Audio Control LC7i (bass restoration) to aftermarket amp, in order to get quality sound of aftermarket speakers (Pioneer TS-65C(.

Pros: Perfect Fit, No wires cutting, Retain vehicle warranty.

Cons: NONE

Crutchfield response on

1 of 1 found this helpful

Exactly what I needed.

Walter from Tyler, TX on 8/18/2024

2022 Honda Accord Sport Special Ed.

Verified customer (What's this?)
Verified employee review (What's this?)

Exactly what I needed for a seamless instal.

Pros: Plug and play.

Cons: None.

Crutchfield response on

2 of 2 found this helpful

PAC LPHHD04 LocPro Advanced T-Harness

Chad from Austin, MN on 8/7/2024

2020 Honda Civic

Verified customer (What's this?)
Verified employee review (What's this?)

Made installing an aftermarket amplifier very simple.

Pros: Easy to use

Cons:

Crutchfield response on

1 of 1 found this helpful

PAC LPHHD04 LocPro Advanced T-Harness

Javier from Tucson, AZ on 7/12/2024

2018 Chevrolet Silverado 1500

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Made install easy! Would recommend

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Cons:

Crutchfield response on

0 of 0 found this helpful

Great product and surpassed my expectations

Zach from San Marcos, TX on 6/3/2024

2024 Honda Civic

Verified customer (What's this?)
Verified employee review (What's this?)

Absolutely amazing, it solved all my problems of actually committing to putting in my after market system in my 2024 civic. Works great and isn't what I expected at all, it took awhile to install the harness it's self cause I like my system set up clean, so I solder everything but once I did that it only got better from there, now I'm blasting my Infinity speakers and my 15 inch sub and absolutely in love with my car now!

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Cons:

Crutchfield response on

1 of 1 found this helpful

PAC LPHHD04 LocPro Advanced T-Harness

Michael from Louisville, KY on 4/22/2024

2018 Honda Accord EX

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Making life easier

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Cons:

Crutchfield response on

1 of 1 found this helpful

Made install of Amp easy.

Petro from Vancouver, WA on 3/18/2024

2019 Honda Civic

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Verified employee review (What's this?)

Work perfect on my 2019 Honda Civic Sport sedan. Made install close to plug and play.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

PAC LPHHD04 LocPro Advanced T-Harness

Stephen from Tarpon Springs, FL on 2/23/2024

Verified customer (What's this?)
Verified employee review (What's this?)

Correct fit and will help with the ability to keep the factory infotainment unit while accessing the speaker outputs . Thanks Scott and Finn !

Pros: Works like a charm

Cons: The radio itself does not come out very far leading to dexterous manipulation of your hands and the T - Harness connector

Crutchfield response on

0 of 0 found this helpful

Terrific Harness

Eduardo De La from STREAMWOOD, IL on 2/6/2024

2019 Honda HR-V

Verified customer (What's this?)
Verified employee review (What's this?)

I installed this harness on a 2019 Honda HRV. It made the installation of an aftermarket amp a breeze and with the included power and ground extension for low voltage equipment I was able to connect a line output convertor with ease.

Pros: Installation a breeze

Cons: None

Crutchfield response on

1 of 1 found this helpful

Works great but "Research Notes" wrong

Daniel from Dallas, TX on 1/22/2024

Verified customer (What's this?)
Verified employee review (What's this?)

Be advised that the terminal ends do not match up with the terminal end under the glove box as stated in the provided Research Notes for the 2022 and up Honda Civics. You must access the rear of the radio through the top center dash panel. The connector is on the bottom left of the stereo when facing the front. I used an electrical fish tape to pull the wires from under the dash on the passenger side. This product works perfectly and really the complaint is against the Research Notes.

Pros: Works great

Cons: Must plug into the rear of the stereo and the Research Notes provided were incorrect for 2022 and up Honda Civic. I installed this on a 2023 Honda Civic.

Crutchfield response on

4 of 4 found this helpful

Work with Honda Civic 2022+

Rafael Marce from Cumming, GA on 1/17/2024

2023 Honda Civic

Verified customer (What's this?)
Verified employee review (What's this?)

Great Harness for Honda Civic EX/Touring 2022+ There is one caveat with this harness for my Honda Civic EX 2023 (and probably 2022 or 2024) The manual instructions provided, show how to use this harness connecting under the glove box. But the connectors that exist behind the glove box are different. Luckily I have disassembled my OEM radio one week before to use a different harness (that didn't work because it was designed for the previous Civic gen 2021 or older) So, this harness worked perfectly, but it should be connected behind the OEM radio and not behind the glove box.

Pros: Work with Honda Civic Sport/EX/Touring 2022 or newer

Cons: Instructions manual point to the wrong place for Honda Civic 2022+

Crutchfield response on

5 of 5 found this helpful

PAC LPHHD04 LocPro Advanced T-Harness

Robert from Notasulga, AL on 1/6/2024

2020 Honda CRV

Verified customer (What's this?)
Verified employee review (What's this?)

This harness made my audio upgrade so much easier. Big thanks to my Crutchfield adviser for suggesting this.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Great easy to use kit!

Adam from Lolo, MT on 12/24/2023

2019 Honda Accord Sport

Verified customer (What's this?)
Verified employee review (What's this?)

Worked great on a 19 accord, there were a few extra steps to get to the correct connector, removing the touchscreen wasn't necessary the connection is made to external unit (large gray box about the size of a computer power supply 6x6 ) directly below the screen and below the two center vents. I had to removed a few extra pieces of trims around the base of the center console and remove the storage cubby as well as its usb and 12v connectors to get good access to it. All the connectors are facing straight down which made it necessary to unbolt that unit get to the connect on the far right and add this splicer. None of this is the kits problem just an extra fyi on the 10th gen accord. Kit worked perfectly!

Pros: Easy to use kit includes everything!

Cons: Price is a bit steep for a small wire loom but the quality is great.

Crutchfield response on

4 of 4 found this helpful

PAC LPHHD04 LocPro Advanced T-Harness

Gabriel from Tampa, FL on 12/15/2023

2020 Honda Accord Sport

Verified customer (What's this?)
Verified employee review (What's this?)

This made my install very easy for a non professional. This was my 9th install. Went with a DSP and 2 amplifiers looks and sounds like a pro job. It's worth every penny.

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Cons:

Crutchfield response on

3 of 3 found this helpful

PAC LPHHD04 LocPro Advanced T-Harness

Deepak from San Burno, CA on 12/8/2023

2024 Honda CRV

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Easy to io

Pros:

Cons:

Crutchfield response on

1 of 1 found this helpful

PAC LPHHD04 LocPro Advanced T-Harness

Tristan from Harrisburg, PA on 9/27/2023

2023 Honda Civic

Verified customer (What's this?)
Verified employee review (What's this?)

Worked as advertised. Very easy to install on my 2023 Civic hatchback with the base audio system.

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Cons:

Crutchfield response on

2 of 2 found this helpful

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