Retains factory features in select GM LAN 11 Bit vehicles while functioning with an aftermarket radio ^^ Pre-programmed to retain factory Steering Wheel Controls ^^ Retains factory OnStar ^^ Supports Bose, non-Bose and Y-91 audio systems ^^
Provides navigational outputs: Reverse Output, Parking brake Output, Illumination, & Vehicle Speed Sense ^^ Have the option of installing a Double DIN or two Single DIN radios