Horn circuit for Mercedes-Benz GLK-class X204 facelift (2012-2015)

BLK WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L CENTER HORNS BUTTON COMPUTER DATA LINES SYSTEM FANFARE HORN RELAY FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 13 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FANFARE HORN LEFT FANFARE HORN SYSTEM BUTTON RED/BLU WIRE RELAY RIGHT FANFARE HORN RIGHT FANFARE HORN SYSTEM BUTTON STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS