Horn circuit for Mercedes-Benz SLK-class AMG R172 (2011-2016)

BLK WIRE BRN WIRE CAN B H CAN B L CAN E H CAN E L CENTRE HORNS BUTTON COMPUTER DATA LINES SYSTEM FANFARE HORN RELAY FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FRONT PREFUSE BOX FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 152 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT FANFARE HORN LEFT FANFARE HORN SYSTEM BUTTON RED WIRE RIGHT FANFARE HORN RIGHT FANFARE HORN SYSTEM BUTTON STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS