Metra Electronics LOC-GMH3

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Transforming Your Chevy/GMC Audio Experience!

The Metra LOC-GMH3 is a line output converter (LOC) designed for use in certain Chevrolet and GMC vehicles manufactured in 2019 and later. A line output converter is used in car audio installations to convert speaker-level signals to preamp-level signals that can be connected to an aftermarket amplifier or audio system.

Unlocking Seamless Integration

Specifically, the Metra LOC-GMH3 is a T-harness that interfaces with vehicles equipped with the RPO (Regular Production Option) codes IOS, IOT, and IOU. These codes typically denote specific audio systems or configurations in Chevrolet and GMC vehicles.

Preserve Your Factory System, Elevate Your Audio Experience!

The purpose of this particular LOC and T-harness is to facilitate the installation of aftermarket audio equipment while retaining the factory-installed stereo system. It helps in tapping into the factory speaker wires to extract an audio signal without altering the original wiring or damaging the vehicle’s electrical system. This allows for a cleaner and more straightforward installation of additional audio components like amplifiers or subwoofers.