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

AUDIO IN GND AUDIO IN R AUDIO IN SH AUDIO-IN L BLK WIRE BLU WIRE BRN WIRE CABLE DET COMAND CONTROL UNIT FUSE 78 GRN WIRE GRY/BLU WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED MEDIA INTERFACE CONTROL UNIT MEDIA INTERFACE ELECTRICAL CONNECTOR MOST DATA BUS CIRCUIT MOST IN MOST MOST OUT NCA WIRE ORG/ WIRE OUT REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE RED WIRE USB USB GND WAKE-UP WHT WIRE YEL WIRE YEL/BLU WIRE