GMC Sierra 2500 (2000-2004) Back-up lamps circuit

B/U LMP VLT B/U LMPS SIG B/U LP FUSE BLK WIRE BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) GRN WIRE GRY WIRE HOT IN RUN OR START LEFT BACK-UP LAMP LT BACK-UP ALARM LT GRN WIRE PARK/NEUTRAL POSITION (PNP) SWITCH (LEFT SIDE OF TRANSMISSION) PNK A/T WIRE PNK M/T WIRE PNK WIRE REAR LAMPS JUNCTION BLOCK RIGHT BACK-UP LAMP TRAILER CONNECTOR TRLR B/U FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT)