Metra Electronics AXRC-GM3 Features:

When replacing the OEM radio some features may be lost. This interface will retain some of those features and also provide Navigation outputs when adding an aftermarket Navigation radio. This interface works in non-amplified models or when bypassing the OEM amplifier. Used in models without ONstar. Retains chimes through onboard speaker.

Provides Accessory Power - 12-Volt 10-Amp
• Retains R.A.P. - Retained Accessory Power
• Used In Non-Amped Systems Or When Replacing Amplified Systems
• Retains All Warning Chimes Through Onboard Speaker
• Provides NAV Outputs - Parking Brake/Reverse And Speed Sense
• Micro-B USB Updatable