Replicates factory warning chimes & provides a databus-generated 12V accessory power output that is fully compatible with the GM(R) RAP system; Keeps the radio powered after key-off; Issues data commands that maintain a health system status to other vehicle’s systems; Retains all warning chimes including backup chimes, memory seats, low fuel, door/hatch ajar & others; Retains RAP system when key is turned off–radio stays on for approximately 10 min or until the door is opened; Supplied wire harness to connect aftermarket stereo to factory speakers; Will work in vehicle that has the factory Bose(R) amp removed or bypassed–custom wiring is required; Buzzer is built into the interface; For non-OnStar(R) 11-bit 2007 Chevrolet(R) Cobalt, 2006-2007 HHR, 2007 Pontiac(R) G5, 2006-2007 Solstice & 2007 Saturn(R) Aura & Sky;