GMC Sierra 2500 (2000-2004) Electrochromic mirror circuit

10 12 PNK WIRE 16 5 PNK WIRE AIR TEMP SENSOR AMBIENT PHOTO SENSOR BACK UP LAMP VOLTAGE OUTPUT BACK UP VOLTAGE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK COMPASS COMPUTER DATA LINES SYSTEM DK GRN/WHT WIRE DRIVER DOOR MODULE (DDM) (IN DRIVER'S DOOR) DRIVER OUTSIDE REARVIEW MIRROR ELECTROCHROMIC MIRROR GROUND GRY WIRE HOT IN RUN, START IGN 1 INSIDE REARVIEW MIRROR LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOW REF LOW REF MIR SIGNAL LT GRN WIRE NCA WIRE OUTSIDE AIR TEMPERATURE SENSOR PNK WIRE RR LIGHT PHOTO SENSOR SELECTOR SWITCH SERIAL DATA SIR FUSE TEMP UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE