Description:

Radio Replacement interface with OnStar(R) retention for select 29-bit GM(R) LAN vehicles with or without BOSE(R) sound system
In-field updateable firmware via USB (using PAC-UP)
Retains OnStar(R) when the factory radio is replaced
Retains factory Bluetooth(R) (2009+ model vehicles)
Retains rearseat audio controls
Retains factory XM(R)
Retains all warning chimes (chime module included)
Retains backup sensors/park assist
Retains backup camera signal
Retains factory BOSE(R) audio systems
Retains factory premium BOSE(R) audio (Y91 digital does not support fading)
Supports nonamplified audio systems
Steering wheel control harness (prewired)
Dual zone function
Chime volume adjustment (factory buttons)
OnStar(R) volume adjustment
Retained accessory power output (RAP)
Reverse wire output
VSS (Vehicle Speed Sense) output
Illumination output
Parking brake output
Includes antenna adapter