REPLICATES FACTORY WARNING CHIMES & PROVIDES A DATA-BUS GENERATED 12V ACCESSORY POWER ;OUTPUT THAT IS FULLY COMPATIBLE WITH GM’S RETAINED ACCESSORY POWER SYSTEM ;WHICH 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 BACK-UP CHIMES, MEMORY SEATS, LOW FUEL, DOOR/HATCH AJAR & OTHERS ; INCLUDES +12V ACCESSORY WIRE ; 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® AMPLIFIER REMOVED OR BYPASSED–CUSTOM WIRING IS REQUIRED ; BUZZER IS BUILT INTO THE INTERFACE