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.

• allows installation of a new receiver in select GM vehicles (also requires the Maestro ADS-MRR or ADS-MRR2 module)
• retains the use of your steering wheel audio controls, OnStar®, factory amp, and warning chimes with any car stereo
• also retains Bluetooth, USB media player, backup camera, and Retained Accessory Power with an iDatalink-ready radio