Horn circuit for Buick LaCrosse II (2009-2013)

BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/GRY WIRE BRN/WHT WIRE FUSE GROUND DISTRIBUTION SYSTEM GROUND DISTRIBUTION SYSTEM PNK WIRE HORN ASSEMBLY (RIGHT FRONT OF VEHICLE) HORN RELAY HORN RLY CTRL HORN SW SIG HORN SWITCH HOT AT ALL TIMES LT GRN WIRE NCA WIRE PNK PNK WIRE PNK WIRE RED WIRE RIGHT STEERING WHEEL CONTROLS SWITCH STEERING WHEEL AIR BAG COIL UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY)