Axxess AXTC-LN29 GM Data Interface With SWC 2006-UpBrand New Axxess AXTC LN29 GM Data Interface With SWC 2006 Up Key Features: Provides retained accessory power (10 amp) Provides illumination, parking brake, reverse, and speed sense outputs Retains warning chimes through an onboard speaker Retains audio controls on the steering wheel Designed to be compatible with all major radio brands Auto detects vehicle type, radio connection, and preset controls Ability to dual assign steering wheel control