Horn circuit for Mercedes-Benz C-class W204/S204 (2006-2011)

1 2 4 3 CAN E L CAN E H 30 31 BLK WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM FAN RELAY MODULE FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE FUSE 13 FUSE GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT FANFARE HORN (BEHIND LEFT SIDE OF FRONT BUMPER) LEFT FANFARE HORN SYSTEM BUTTON LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP NCA WIRE RED WIRE RED/BLU WIRE RELAY RELAY ENERGIZED RIGHT FANFARE HORN (BEHIND RIGHT SIDE OF FRONT BUMPER) RIGHT FANFARE HORN SYSTEM BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) STEERING WHEEL GEAR SHIFT SIGNAL PROCESSING MODULE (INSIDE STEERING WHEEL) WHT WIRE