PAC LCGM51 Radio Replacement Interface for Non Amplified 29-Bit GM LAN VehiclesBrand New PAC LCGM51 Radio Replacement Interface for Non Amplified 29 Bit GM LAN Vehicles Key Features: Radio Replacement Interface for select non amplified 29 Bit GM LAN v2 vehicles with 20 Pin and 16 Pin harnesses Retains all safety warning chimes when the factory radio is replaced Provides 10 minute RAP accessory output Retains factory reverse camera when used in conjunction with the CAM GM51 Item Dimensions: 15. 5 x 2 x 12 inches Item Weight: 4