AXTCLN29 Axxess GM Data Interface With SWC 2006-Up NEWBRAND NEW AXTCLN29 Axxess GM Data Interface With SWC 2006 Up 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 buttons Retains