Keep your GM factory features

iDatalink's HRN-HRR-GM2 wiring adapter allows you to connect a new car stereo in select 2010-up GM vehicles, working in conjunction with iDatalink's Maestro ADS-MRR or ADS-MRR2 module. Once connected, you'll retain the use of your steering wheel audio controls in these vehicles, as well as your warning chimes, OnStar, factory amplifier, and park assist feature. If you're installing an iDatalink-ready car stereo, you'll also keep your Bluetooth, backup camera, and the Retained Accessory Power feature (RAP).

Works with the Maestro module

The package includes connectors that plug in between the Maestro module, your factory radio's wiring plugs, and the serial port on your new car stereo (if present). You'll have to solder or splice together this harness's power/ground, illumination, and speaker wires to the corresponding wires on your aftermarket receiver's wiring harness.

Plug directly into your new stereo

This harness also features an in-line head-unit connector harness, which will plug into their new "Head-unit direct" harnesses for select radio brands, which eliminate the need to splice any wires. If you're installing a radio that doesn't work with a "Head-unit direct" harness, you simply cut off the plug and connect the wires to the harness included with your new radio.

Installation note: The HRN-RR-GM2 adapter must be used with the iDatalink Maestro ADS-MRR or ADS-MRR2 module to connect a new car stereo to your General Motors vehicle.