Metra GMRC-02 Factory Integration Adapter

Install a new car stereo and retain the factory door chimes and audible safety warnings in select 2000-up GM vehicles

Item #: 120GMRC02

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Original Price: $79.99

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Problem: Installing an aftermarket receiver in many late model (2000-up) General Motors vehicles means losing the chime that warns the door is open, along with audible safety warnings.

Solution: Metra's GMRC-02 GM Class II data bus interface lets you replace the factory receiver in these vehicles and keep the door chime and audible safety warnings. Hook the GMRC-02 to your aftermarket radio, mount the module in a location where the chime can be heard, and plug it into the existing factory plug. Get the great sound you want, and keep all important safety features intact.

Also, once you turn off the ignition in these GM vehicles, the radio continues to play until you open the door. This interface maintains that function with your new aftermarket radio. This interface is compatible with select 2000-and up GMC, Chevrolet, Oldsmobile, Pontiac, and Isuzu vehicles. If you haven't done so already, please enter your vehicle information or call a Sales Advisor at 1-888-955-6000 to find out if this item is compatible with your vehicle. Warranty: 1 year.

Note: The GMRC-02 will not work with Bose or Monsoon systems.

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so. You can also call an Advisor for more information.

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What's in the box?

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  • GM Class II Data bus interface
  • 25.5" Connecting harness (with a male 24-pin connector on one end and a female 10-pin connector and multiple bare wires on the other end)
  • Important Warning sticker
  • Installation Instructions

Product Research


Overview: The GMRC-02 interface is designed to allow you to install an aftermarket receiver into select General Motors vehicles with amplified audio systems. It is not compatible with Bose or Monsoon systems. This interface allows you to continue to use the factory chime system through the factory speakers and keep the 12V switched voltage for radio operation. The GMRC-02 will also keep the radio on until the front driver door is opened.

Connections: The wiring harness has a white 10-pin female connector (9 pins present) on one end and a gray 24-pin male connector (14 pins present). The white 10-pin connector plugs into the GMRC-02, and the gray 24-pin connector interfaces with the existing factory plug. The bare wires are used to integrate the aftermarket receiver into the system.

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