Retains OnStar® system functionality and the Bose factory-installed amplifier (if present) when the factory radio is replaced in a 29-bit GMLAN vehicle. Generates all safety warning chimes and audible turn signal indicators.

• Retains OnStar® when the factory radio is replaced
• Retains Factory Bluetooth (2009+ model vehicles)
• Retains rear seat audio controls
• Retains factory XM
• Retains all warning chimes (chime module included)
• Retains back-up sensors/park assist
• Retains back-up camera signal
• Retains factory BOSE audio systems
• Retains factory premium BOSE audio (Y91 digital. does not support fading)
• Supports non-amplified audio systems
• Steering wheel control harness (pre-wired)
• Dual zone function
• Chime volume adjustment (factory buttons)
• Rear seat audio and video (GMRVD) required
• OnStar volume adjustment
• Retained accessory power output (R.A.P.)
• Reverse Wire output
• VSS (Vehicle Speed Sense) output
• Illumination output
• Parking brake output
• Includes antenna adaptor

NOTE: Fading is not supported in Premium amplified systems.