PAC C2R-GM11 Radio Replacement Interface for Select 2006-Up GM LAN Vehicles

The PAC C2RGM11 is a radio replacement wiring interface designed to help you install an aftermarket stereo in select General Motors vehicles that use the 11-bit GMLAN data bus system and do not have OnStar. This adapter maintains key factory functions — like safety warning chimes and audible turn signals — while supplying the correct accessory, speaker, and control outputs needed by a modern head unit. It’s compatible with both amplified and non-amplified factory audio systems and provides the data-controlled outputs necessary to keep the vehicle’s electrical system “healthy” after the factory radio is removed.