Features: Safe and Sound Class 2 circuitry will not disable vehicle data bus even if interface loses power OnStar volume control via factory steering wheel audio controls Radio controls can be retained to control new radio by using a PAC SWI interface Retains door and safety chimes including rear parking assist chimes Works with premium Bose or standard amplified sound systems New radio will operate with the vehicle RAP (Retained Accessory Power) system Compatibility List: Cadillac: 2000-2002 Eldorado 2000-2005 Deville 2000-2005 Sevile Connections: Yellow – 12V Constant Red – 12V Accessory Black - Ground Orange – Dash Light Dimmer/Illumination Green – Left Rear Speaker (+) Green with Black Stripe Left Rear Speaker (-) White – Left Front Speaker (+) White with Black Stripe – Left Front Speaker (-) Purple – Right Rear Speaker (+) Purple with Black Stripe – Right Rear Speaker (-) Gray – Right Front Speaker (+) Gray with Black Stripe – Right Front Speaker (-)