PAC C2R-GM11b GM Radio Replacement Interface for GMLAN 11-bit Vehicles without OnStar Owner’s Manual
Learn how to install the PAC C2R-GM11b GM Radio Replacement Interface for GMLAN 11-bit Vehicles without OnStar. Replicates all factory warning chimes and turn signal indicators. Provides a data bus-generated 12-volt accessory output. Compatible with or without factory-amplified audio systems. See full specifications for compatible vehicle models.