
Keep your OEM wiring intact and take the guesswork out of identifying appropriate speaker wires with the LocPRO Advanced T-Harness for Select Chevrolet and GMC Vehicles by PAC. The LPHGM71 provides speaker leads, 12V, and ground inputs for adding aftermarket audio equipment to factory non-amplified audio systems. This T-harness can be used with any line output converter, amplifier, or digital signal processor (DSP).
Q: Does this harness work with factory amplified systems?
A: No, this harness is designed for factory non-amplified systems with 2/29 pin connectors.
Q: What does this T-harness do?
A: The LocPRO Advanced T-Harness lets you add aftermarket audio equipment to factory non-amplified audio systems in select Chevrolet and GMC vehicles.
Q: Are the wires on this harness color-coded?
A: Yes, the wires are color-coded according to the E.I.A. standard for quick and easy installation.
Q: How does this harness simplify subwoofer installation?
A: This harness includes the LPH-SPK (E) subwoofer T-harness pigtail to make connecting a subwoofer simple.
Q: Will this work for a 2025 Chevy Colorado without Bose.
A: Unfortunately that vehicle is not compatible.
Q: Will this work for a 2025 Chevy Malibu non Bose system
A: Unfortunately this harness is not compatible with that vehicle
Q: Will this harness work for a 2022 Chevy Malibu?
A: Unfortunately, that vehicle is not compatible.
Q: Will this work on my Chevy Blazer EV Rs 2025 (non bose) ? Thanks
A: As long as it has the RPO code "IOR" it will work. You can find this info by scanning the QR code in the driver door jamb. If it is an IOS or IOT then you will need the LPHGM72.
Customers praise the LocPRO Advanced T-Harness for Select Chevrolet and GMC Vehicles, highlighting its easy installation process that eliminates the need for wire splicing. Users also appreciate its overall performance, noting that it effectively fulfills its intended purpose.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Keep your OEM wiring intact and take the guesswork out of identifying appropriate speaker wires with the LocPRO Advanced T-Harness for Select Chevrolet and GMC Vehicles by PAC. The LPHGM71 provides speaker leads, 12V, and ground inputs for adding aftermarket audio equipment to factory non-amplified audio systems. This T-harness can be used with any line output converter, amplifier, or digital signal processor (DSP).

Keep your OEM wiring intact and take the guesswork out of identifying appropriate speaker wires with the LocPRO Advanced T-Harness for Select Buick, Cadillac, Chevrolet, and GMC Vehicles by PAC. The LPHGM51 provides speaker leads, 12V, and ground inputs for adding aftermarket audio equipment to factory non-amplified audio systems. This T-harness can be used with any line output converter, amplifier, or digital signal processor (DSP).

Factory fit installation ‘T’-harness for select GM ‘Push-to-start’ 2010 and up. Plugs directly into vehicle factory connectors with little-to-no analog connections required. Compatible with select iDatastart, Firstech, Flashlogic, Omegalink and Orbit branded remote start systems.

Easily add an aftermarket amplifier or subwoofer to your vehicle’s factory audio system with this 2-Channel Active Line Output Converter with AccuBASS and Subwoofer Control by AudioControl. The LC2i PRO converts speaker-level (high-level) audio signals to RCA preamp (low-level) signals so you can install an aftermarket amplifier or subwoofer without replacing your factory radio. This two-channel line output converter also features AccuBASS technology so you can turn up the volume without losing bass.
| Pros for PAC - LocPRO Advanced T-Harness for Select Chevrolet and GMC Vehicles - Multi | |||
|---|---|---|---|
| Ease of Installation, Overall Performance | There were no pros for this product— | There were no pros for this product— | Sound Quality, Bass, Ease of use, Installation, Price |