This Data Interface Harness for select 2006 to 2017 GM vehicles allows you to easily remove the factory stereo in an otherwise impossible situation and replace it with an aftermarket stereo and retain all of the factory functions. Provides accessory power 12 volt 10 amp retains RAP retained accessory power provides NAV outputs Parking Brake Reverse and Speed Sense retains chimes through an onboard speaker is Micro B USB updatable and is designed for non amplified models analog amplified models or when bypassing a factory amp. ASWC 1 Module required if you wish to retain steering wheel controls sold separatelyProvides accessory power 12 Volt 10 AmpRetains R A P Retained Accessory PowerProvides NAV outputs parking brake reverse speed senseRetains chimes through an onboard speaker