The package includes connectors that plug in between the Maestro module, your GM radio’s wiring plugs, and your new car stereo. The harness now includes the option of speaker-level outputs to your amp via included plug-in adapters. You’ll have to solder or splice together this harness’s power/ground, illumination, speaker, and navigation output wires to the corresponding wires on your aftermarket receiver’s wiring harness. The package also includes a plug-in remote speaker which reproduces all factory warning chimes and turn signal clicks.

• allows installation of a new receiver in select GM vehicles (also requires the Maestro ADS-MRR module)
• retains the use of your steering wheel audio controls, OnStar, safety warning chimes, and your factory amp
• displays engine performance data on touchscreen with select Alpine, JVC, Kenwood and Pioneer receivers
• warranty: 1 year