Emergency call circuit for Mercedes-Benz S-class W221 (2005-2009)

ANT ANTENNA SPLITTER BLK WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM CTEL ANTENNA (AT REAR CENTER OF ROOF) EC LED TDC LED IC LED ECS ICS ICS CRASH EMERGENCY CALL SYSTEM ANTENNA SPLITTER EMERGENCY CALL SYSTEM CONTROL UNIT EMERGENCY CALL SYSTEM LEFT BACKUP ANTENNA EMERGENCY CALL SYSTEM RIGHT BACKUP ANTENNA FREQUENCY SWITCHOVER CONTROL MODULE FUSE 138 W/ FUSE, RELAY MODULE GRN WIRE GRN/RED WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES VEHICLE POWER SUPPLY FUSE 10 CONTROL UNIT HOT W/ CIRCUIT LSP + CAN-D H CAN-D L MIC SHIELD MIC MUTE NCA WIRE ORG/ WIRE REAR SAM CONTROL MODULE RED WIRE SOUND SYSTEMS UHI PORTABLE CTEL HOLDER (UNIVERSAL HANDY INTERFACE) VIO WIRE WHT WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/PNK WIRE YEL/RED WIRE

BLK WIRE BLU WIRE BRN WIRE CENTER COCKPIT SPEAKER COMPUTER DATA LINES SYSTEM GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE INSTRUMENT CLUSTER SYSTEM MB-INFO, TELEDIAGNOSIS BUTTON GROUP NCA WIRE ORG/ WIRE RESTRAINT SYSTEMS CONTROL MODULE SOS PUSHBUTTON SWITCH WHT WIRE YEL WIRE YEL/GRN WIRE YEL/PNK WIRE