Horn circuit for Buick Regal V (2009-2013)

28 (OR 3287) BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/GRY WIRE BRN/WHT WIRE FUSE 5 FUSE 51 GROUND DISTRIBUTION SYSTEM HORN ASSEMBLY (LEFT FRONT WHEEL WELL) HORN RLY CTRL HORN RLY CTRL (OR) HORN SW SIG HORN SWITCH HOT AT ALL TIMES PNK WIRE RED WIRE RIGHT STEERING WHEEL CONTROL SWITCH STEERING WHEEL AIR BAG COIL UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) HORN RELAY