Horn circuit for GMC Sierra IV facelift (2022-2024)

BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BEHIND STEERING WHEEL) BLK WIRE BLU WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE ENGINE WIRING HARNESS JUNCTION BLOCK GRN WIRE GRN/WHT WIRE GRY WIRE HORN HORN RELAY HORN RLY CTRL HORN SW SIG HOT AT ALL TIMES RED WIRE STEERING WHEEL AIR BAG COIL STEERING WHEEL HORN CONTACT W/ SPECIAL SERVICE WHT WIRE