Compatible with various 2000-2013 GM®. This product is not created or sold by GM®.; Data interfaces allow you to install an aftermarket stereo and retain factory features. For example: Provides accessory power (12-volt 10-amp). Retains R.A.P. (retained accessory power). Provides NAV outputs (parking brake, reverse, speed sense). Pre-wired AXSWC harness (AXSWC sold separately). Retains chimes to the factory speaker. Adjustable chime level. Compatible with OnStar® and factory Bluetooth®. This product is not created or sold by OnStar® or Bluetooth®. Adjustable OnStar® level. Designed for non-amplified models, or when bypassing a factory amp *. Retains balance and fade. AXUSB-CBL updatable (sold separately).