PRODUCT DESCRIPTION: 

PAC OS4 GMLan Vehicles with or without OnStar or Bose Radio Interface for Specific 2006-Up GM Vehicles Using the GMLan Data Bus

**Verify Your Vehicle**
See PAC-AUDIO.COM for Vehicle Compatibility

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 Factory Bluetooth (2009-2010) 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
 

MODEL #: OS4