LCGM29

Radio Replacement Interface for 29-bit GM vehicles with non-amplified or standard Bose amplified audio systems without OnStar.
The entry model LCGM29 retains the factory warning chime sound through a built-in piezo speaker and provides a 12v ACC output for the aftermarket radio. It does not provide navigation outputs such as VSS, Reverse Output, or Parking Brake Outputs; please see the C2R-GM29 for a navigation-ready solution. Does not retain OnStar®. Please see OS-5 for an OnStar® solution.

Retains all safety warning chimes
Provides 10 minute RAP output
Compatible with factory non-amplified and standard Bose audio systems (not compatible with Premium Bose)
Provides 12v ACC output