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Customer Reviews

PAC LPHGM72 LocPro Advanced T-Harness

PAC LPHGM72 LocPro Advanced T-Harness T-harness for adding an aftermarket amp, LOC, or signal processor to select 2019-up GM vehicles without BOSE® audio systems (Works in vehicles with RPO Codes IOS, IOT, or IOK)

MFR # LPHGM72

5.0 out of 5 stars
12 reviews
View this product
Plug and play with jumper wire options...

Travis from Hillsdale, Mi on 7/8/2025

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

Love the fact that I can add a Subwoofer without hacking the OEM system. Plug and play and love the jumper wire options also. Will be buying another one for my next install on a 24 Silverado with RPO IOS..

Pros: Plug and play, jumper wire options, plugs are color coded so if your plugs aren't these colors you need one for a different RPO code

Cons: Bulky for the space it goes in, wires could be shorter at harness connection but longer for the jumper connections

Crutchfield response on

0 of 0 found this helpful

Great for future ad ins too

Kergan from Bakersfield, CA on 6/28/2025

2019 Chevrolet Colorado

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

This helped not mess with the factory harness, has a sub t in the bundle so I could just wire it in without wasting the wires they supplied.

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Crutchfield response on

0 of 0 found this helpful

PAC LPHGM72 LocPro Advanced T-Harness

Michael from Weatherford, TX on 5/29/2025

2025 Chevrolet Silverado 1500

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

This harness makes install a breeze, and works great!

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Crutchfield response on

0 of 0 found this helpful

PAC LPHGM72 LocPro Advanced T-Harness

Alejo from Long Beach, CA on 5/27/2025

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

Perfect fit

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

PAC LPHGM72 LocPro Advanced T-Harness

Jason from North Haverhill, NH on 3/31/2025

2024 Chevrolet Silverado 1500

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

Nice easy process to set up, very simple!

Pros: Very clean audio sound system sounds great now

Cons: The wires running off the leads you plug in could be a bit longer, was tricky to find a spot to mount

Crutchfield response on

0 of 0 found this helpful

Worked for me

Robert from Buckeye, AZ on 2/23/2025

2024 Chevrolet Colorado

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

Used front speaker outs in a 2024 colorado non bose and worked.

Pros: Had what I needed

Cons: Its bulky to hide behind panels but doable

Crutchfield response on

3 of 3 found this helpful

PAC LPHGM72 LocPro Advanced T-Harness

Darren from Carbondale, CO on 2/11/2025

2022 Chevrolet Silverado LTD

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

Simplifies the process of tapping into signal wires without modifying factory wiring! Worked great for me!

Pros: Easy install

Cons: None

Crutchfield response on

1 of 1 found this helpful

Clean and easy install to retain factory grade unit

Melinda from Vulcan, MO on 12/27/2024

2019 GMC Sierra 1500

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

Bought for 2019 GMC Sierra non-Bose with 8" display. Easy plug and play. Ran the sub signal wires to a pair of JL AUDIO XD-CLRAIC2-SW wire-to-RCA adapters. To get signal to my AudioConttol ACX 600.1 mono amp.

Pros: Simple plug and play.

Cons: None

Crutchfield response on

1 of 1 found this helpful

Easy system integration without chopping up your factory harness

Jake from Dearborn, MI on 12/14/2024

2007 Hyundai Sonata

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

Worked great in my 2021 Chevy traverse. Crutchfield info said to use a different harness, but this one was the ticket. Crawl underneath your dash and check what colors you have on the connector is going to your factory unit to be sure.

Pros: Easy hook up No need to cut a single factory wire! Makes for a quick and clean install I built the harness 100% at my kitchen table and only needed to do one connection for remote wire in the car. This was definite plus when installing my GFs Xmas present stereo outside in freezing temps vs trying to cut and splice where you're pouring over the car for hours figuring out all of the factory connections you need. Save yourself the trouble even if it's nice outside!

Cons: They don't give you a comprehensive list of all wires, just speaker and power connections. Minor gripe but was curious if any were ANC related.

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Customer review photo

1 of 1 found this helpful

PAC LPHGM72 LocPro Advanced T-Harness

James from Rocklin,ca on 9/21/2024

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

This product does not fit my 2019 Malibu the connections are wrong if any body looking for this I'm going to try the gm71 and see if I have any luck

Pros: Excellent wiring diagram

Cons: Connecting the plugs was wrong plugs

Crutchfield response on

1 of 1 found this helpful

Crutchfield makes it Possible..

Crutchfield customer from Whitesville, NY on 4/21/2024

2020 Chevrolet Silverado 1500

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

I was looking to put some Bass in my 20 Silverado the proper way to not disturb or void any warranty. I called and spoke to Red and got the vehicle build code for the stereo he needed and Roy showed me how to get it. Three days later I received the proper kit that will let me integrate a powered subwoofer which is awesome to compliment the missing part of the system. I have been thinking about the other part of the kit that can be used to hookup multiple channel amps for the factory speakers to make them wakeup. I have a JL Audio 40x4 amplifier for the main speakers. Roy knows how to help people do what is needed for these newer vehicles to do it like a professional. Last note but not to be forgotten you can use or save your points from purchases made at Crutchfield which can help to pay for. Thanks Again Roy !

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Crutchfield response on

3 of 3 found this helpful

PAC LPHGM72 LocPro Advanced T-Harness

Gene from Suffolk, VA on 3/18/2024

2019 Chevrolet Camaro

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

Was a direct fit to add inputs for subwoofers.

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Crutchfield response on

2 of 3 found this helpful

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