Emergency call circuit for Mercedes-Benz GLC-class Coupe C253 (2016-2019)

AMPS/CDMA AMPS/DVMA BRAKE DOWN ASSISTANCE BUTTON BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN-D H CAN-D L CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM ANTENNA EMERGENCY CALL SYSTEM CONTROL UNIT FUSE 309 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GPS GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEAD UNIT HOT AT ALL TIMES MB INFO BUTTON MIC 1 GND MIC 1+ MUTE NCA WIRE NRS OUT OVERHEAD CONTROL PANEL CONTROL UNIT PNK/BLK WIRE RED WIRE RIGHT A-PILLAR FUSE BOX SHIELD SOS BUTTON SOUND SYSTEM AMPLIFIER CONTROL UNIT SUPPLEMENTAL RESTRAINTS SYSTEM TELEPHONE ANTENNA SPLITTER VIO WIRE W/ SOUND SYSTEM W/O SOUND SYSTEM WHT WIRE