Horn circuit for Mercedes-Benz E-class W211/S211 (2002-2006)

BLK WIRE BRN WIRE BRN/RED WIRE CAN B COLUMN) COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM (AT LEFT HEADLAMP UNIT) DRIVER SIDE SAM CONTROL MODULE WITH FUSE, RELAY MODULE (LEFT REAR OF ENG COMPT) FAN RELAY MODULE FUSE HORN/ AIRBAG CLOCK SPRING CONTACT HOT AT ALL TIMES HOT W/ LEFT FANFARE HORN (LEFT FRONT WHEELHOUSE) LEFT MULTI- FUNCTION STEERING WHEEL PUSHBUTTON GROUP FANFARE HORN SWITCH NCA WIRE RED WIRE RELAY ENERGIZED RIGHT FANFARE HORN (RIGHT FRONT OF ENGINE COMPT) RIGHT MULTI- FUNCTION STEERING WHEEL PUSHBUTTON GROUP FANFARE HORN SWITCH STEERING COLUMN MODULE (ON STEERING CAN-B CAN-B WHT WIRE YEL WIRE