AXRC-GM4 Axxess GM data bus interface 200-2005 NEWBRAND NEW AXRC GM4 Axxess GM data bus interface 200 2005 Provides accessory power (12 volt 10 amp Retains R. A. P. (retained accessory power) Provides NAV outputs (parking brake, reverse, and speed sense) Used in non amplified models, or when bypassing a factory amplifier Used in models without OnStar Retains all warning chimes High level speaker input Retains balance and fade Micro B USB updatable Buick Le Sabre 2000 2005 Aurora 2001 2003 Bonneville