Provides accessory power (12-volt 10-amp)
Retains R.A.P. (retained accessory power) Retains OnStar/OE Bluetooth Retains chimes Adjustable volume for chimes and OnStar Provides NAV outputs (parking brake reverse mute and speed sense) | Retains audio controls on the steering wheel
Can be used in non-amplified or amplified models Adjustable gain control for overall volume (amplified models only) High level speaker input Retains balance and fade Micro B USB updatable |