Mercedes-Benz S-class W221 (2005-2009) hazard button warning "back" system button wiring diagram

1 2 3 31 LIN-BUS 30 1 2 3 4 5 6 7 8 31 PROGKEY CAN-A L WBS-OUT 30 CAN-A H WBS-IN WBS-LED 13 3 CAN-A L CAN-A H ANTENNA SPLITTER BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE BUTTON MUTE BUTTON "ON" CAN B H CAN B L CAN D H CAN D L COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM DISC/RADIO QUICK VOLUME SELECT CONTROL BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT FREELY TURN/ PROGRAMM- PUSH ABLE CONTROL BUTTON FRONT CENTRAL OPERATING UNIT GPS ANTENNA (AT REAR CENTER OF ROOF) GRN WIRE GRY WIRE GRY/WHT WIRE HAZARD BUTTON WARNING "BACK" SYSTEM BUTTON HEAD TRANSMISSION RESTRAINT MODES FOLDING BUTTON BUTTON NCA WIRE PORTABLE CTEL ANTENNA AMPLIFIER RED WIRE RED/WHT WIRE SOUND AMPLIFIER MICROPHONE TELEPHONE KEYPAD UHI PORTABLE CTEL HOLDER (UNIVERSAL HANDY INTERFACE) UNIVERSAL PORTABLE CTEL INTERFACE (UPCI (UHI)) CONTROL MODULE UPPER CONTROL PANEL MODULE VIO WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE