Audi A4 B8 (2007-2012) Horn circuit

AIR BAG SPIRAL RETURN/ SLIP RING (IN STEERING COLUMN) BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER'S SIDE GRY WIRE GRY/YEL WIRE HORN RELAY (ON VEHICLE ELECTRICAL SYSTEM CONTROL MODULE RELAY/FUSE CARRIER) HOT AT ALL TIMES FUSE FUSE PANEL FUSE 7 CARRIER (BEHIND LEFT END OF DASH) LOW TONE HORN HIGH TONE HORN NCA WIRE ORG/BRN WIRE ORG/GRN WIRE RED WIRE SIGNAL HORN ACTIVATION STEERING WHEEL CONTROL MODULE VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (UNDER LEFT SIDE OF DASH) WHT WIRE YEL WIRE