Metra Electronics AXGM-05 Features:

When replacing the Oem radio in select veihcles some features will be lost or not funtion. This radio data interface will retain those features and provide Nav outputs for multimedia radios. This interface will work in non amplified models. Retains Onstar/ and OE Bluetooth. Works in GM 2000-2005 with Dock n' LocK style harness. * If the vehicle is amplified, either use the AXGM-09 interface, or bypass the amplifier. If bypassing the amplifier, follow the 'Axxess Interface Amp Bypass Schematic' online.

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 Chimes
• Provides NAV Outputs - Parking Brake/Reverse And Speed Sense
• Retains OnStar®/OE Bluetooth®
• Adjustable Gain Control For Chimes And Onstar®
• High-Level Speaker Input