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Customer Reviews

PAC LPHEXT17 Speaker Harness Extension

PAC LPHEXT17 Speaker Harness Extension 17-foot extension for a PAC LocPro Advanced T-harness

MFR # LPHEXT17

5.0 out of 5 stars
27 reviews
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Very good but not great

Jared from Mascoutah, IL on 6/3/2025

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Verified employee review (What's this?)

Very handy but no power extension when the t harness includes power? I was told that it's only for hooking up factory speakers to aftermarket amps and locs but they locs and dsps require power ....anywho not a big deal but it seems like a missed opportunity to go above the minimum requirements. Speaking of requirements, should be noted as requirement for rear installation of amps,locs, etc. on t harness page, if you don't feel like fabrication of 16 extended lengths of wire

Pros: Very necessary for amps and locs that will be mounted in the rear of trunk of vehicle. Easy to understand and install

Cons: No extension for the power and accessory part of the T harness

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1 of 1 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Michael from Weatherford, TX on 6/2/2025

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Makes install a breeze!

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Andrew from Pataskala, OH on 5/29/2025

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Works great and easy to install! Would recommend

Pros: Easy to install

Cons:

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0 of 0 found this helpful

Great

Trevor from Phoenix, AZ on 4/5/2025

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Exactly what was described?I was received very clean.I'm very happy.Thank you

Pros: A lot less wiring I had to do

Cons:

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Gonzalo from San Antonio, TX on 3/30/2025

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Awesome this speaker harness made the install super easy I highly recommend it ??????????

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Robert from Howey In Hls, FL on 2/20/2025

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This harness worked out great , easy hookup to other color coded wires to run to and from my amp in my bronco .thanks Crutchfield !!

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1 of 1 found this helpful

Easy

Robert from Lebanon, IN on 11/23/2024

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Makes it so easy to mount amp anywhere.

Pros: Easily add amp anywhere.

Cons: None

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Carlos from Chicago, IL on 11/6/2024

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They great if you need long runs of signal wire. Makes cleaner install!!

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1 of 1 found this helpful

PAC LPHEXT17

Edgar from COLORADO SPGS, CO on 10/10/2024

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Great harness that make the connection to T-Harness a breeze!

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1 of 1 found this helpful

PAC LPHEXT17 Speaker Harness Extension

April from Troutman, NC on 10/4/2024

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Fit the length of the car as needed, tucked it into the door trim no problem at all

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0 of 0 found this helpful

Works great!

Walter from Tyler, TX on 8/18/2024

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Works great!

Pros: Easy to run color coded

Cons: None.

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0 of 1 found this helpful

Convenient!!!

Timothy from Marysville, WA on 8/12/2024

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So convenient making the job so much easier. ..??

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0 of 2 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Doug from Vail, CO on 7/25/2024

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Plug, splice and play. Everything is well labeled multiple times along each set(input/output front/rear) eliminating any guesswork after cutting to length. Each wire clearly color coded.

Pros: Clearly labeled and coded.

Cons: A shorter length option would've been nice. I needed only about 5' of the 17'.

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2 of 3 found this helpful

Save time and trouble...

David from South Grafton, MA on 7/19/2024

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nothing like a CORRECT harness to make life easier...

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Phillip from Panama City, FL on 7/14/2024

2022 Ford F-250 Limited

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Verified employee review (What's this?)

These made my amp/dsp install so easy from OEM head unit with the PAC T harness. They are marked every few feet showing which input to amp or which output back to front harness for speakers, which means you can pre cut length and Tesa tape them and solder them to your amp wires or hook on whatever crimp you use for amp input in your A/C house instead of in the heat outside. Personally I made two separate wrapped sets because of a lack of room going through thresholds. Got them all set, walked out and was in the heat less than two hours.

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1 of 1 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Bryan from Porterville, CA on 5/27/2024

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Worth the money. Saves time

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Alfred from Saint Cloud, FL on 5/6/2024

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Excellent product, made the install so much easier.

Pros: Color matching to T-harness was great.

Cons: None

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Gregory from Leland, NC on 4/18/2024

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Works perfectly and the length is great. It runs from my radio to the truck.

Pros: Length Ease of installation

Cons:

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0 of 0 found this helpful

Worked great on 21 Trailblazer LT AWD non-Bose with ANC!

John from Ellsworth, WI on 4/9/2024

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For anyone wondering, this was not recommended as fitting my vehicle (21 Trailblazer LT AWD non-bose, but with ANC amp and sub in rear of vehicle), but it worked great! I also got the PAC LPHGM71 LocPro Advanced T-Harness so I could add a rear-mounted amp ( JBL STAGE A6004 - 4 Channel 60W x 4 ) to power my door speakers using the factory wiring. I replaced all four door speakers (JBL Club 622) to handle the amp. Also added an AudioControl LC2i 2 Channel Line Out Converter for sub outs to feed a JBL Basspro Hub 11" powered subwoofer system. Everything worked flawlessly. Huge time saver and sounds much better than the stock system! Just remember to cut the purple ANC wire on the ANC amp (non-bose systems) behind the plastic panel in the rear passenger-side cargo area. More info can be found on Trailblazer Talk. Com forums). Otherwise you'll get some horrible bass fluttering sounds from the Automatic Noise Cancellation system in the AWD non-Bose Trailblazers.

Pros: Huge time saver! Better than splicing and easy to return to "factory condition" for future changes or removals.

Cons:

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3 of 3 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Jeremy from Sioux Falls, SD on 3/11/2024

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This is the perfect companion to the PAC T-Harnesses. 17ft was long enough for use in my F150 Supercrew. I would like to see them put tech-flex on it but that's really the only downside.

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0 of 0 found this helpful

Great buy

Michael from Elyria, OH on 2/26/2024

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Great add on extension, don't have to worry about running additional wires .

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1 of 1 found this helpful

Awesome harness extension

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

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I paired this harness extension with the PAC LPHHDO4 harness and installed them on a 2019 Honda HRV. All I can say is it made the entire installation of an aftermarket amp and line output convertor a piece of cake. All the connections are accurately labeled with descriptions on which wires go to the amp and which ones run from the amp to the main harness.

Pros: Easy connections

Cons: None

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1 of 1 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Nathan from NEWARK, OH on 1/31/2024

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I used this harness to extend my factory speaker wires to behind the rear seat of my crew cab and then back into the factory wiring to run the amplified signal to the speakers. It works great and the install was very simple and straightforward.

Pros: Ease of installation and quality

Cons:

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2 of 2 found this helpful

Quality harness

Rosel from Lakewood Ranch, FL on 11/28/2023

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Good quality harness

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Arthur from Trumbull, CT on 11/10/2023

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Nice way to go from factory to loc

Pros: Easy

Cons: None

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

Fernando from Redondo Beach, CA on 10/29/2023

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Good quality and the length is great so you can run all the way back to the trunk!

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0 of 0 found this helpful

PAC LPHEXT17 Speaker Harness Extension

John F Lann from Round Rock, TX on 10/29/2023

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Excellent choice for running speaker wire to amp or subwoofer from front of vehicle to a distant location in the rear. Plenty of length!

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