BMW 3 series G20/G21 (2018-2023) head unit Wiring diagrams

BLK WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE CD DRIVE CENTRAL INFORMATION DISPLAY FUSE 214 FUSE 59 GRN WIRE HEAD UNIT HOT W/ HOT W/ TERMINAL MICROPHONE (W/ TELEMATICS) NCA WIRE ORG/ WIRE REAR POWER DISTRIBUTION BOX RED WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX USB CONNECTION W/ USB HUB W/0 USB HUB W/O USB HUB WHT WIRE YEL WIRE

ACTIVE SOUND DESIGN AUXILIARY BATTERY BASIC BLK WIRE BLU WIRE BRN WIRE CAR SHARING MODULE CONTROLLER (IDRIVE) CRASH SAFETY MODULE DIGITAL MOTOR ELECTRONICS DYNAMIC STABILITY CONTROL (DSC) GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HEAD UNIT NCA WIRE PNK/BLK WIRE PNK/BLU WIRE RECEIVER AUDIO MODULE RED WIRE RWD TELEMATIC COMMUNICATION BOX TRANSFER BOX VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

BLK WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE CD DRIVE CENTRAL INFORMATION DISPLAY FRONT CENTER VENTILATION GRILLE FUSE 214 FUSE 59 GRN WIRE HEAD UNIT HOT W/ HOT W/ TERMINAL MICROPHONE (W/ TELEMATICS) NCA WIRE ORG/ WIRE REAR POWER DISTRIBUTION BOX RED WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONT POWER DISTRIBUTION BOX USB CONNECTION VIO WIRE W/ USB HUB W/O USB HUB WHT WIRE WLAN ANTENNA YEL WIRE

BRN WIRE COMPUTER DATA LINES SYSTEM GPS ANTENNA GRN WIRE GRN/GRY WIRE HEAD UNIT HEATED REAR WINDOW BAND ELIMINATION CIRCUIT 2 NCA WIRE RECEIVER AUDIO MODULE RED/VIO WIRE RED/WHT WIRE SDARS ANTENNA W/ TELEMATICS W/O TELEMATICS WHT WIRE WHT/GRY WIRE YEL WIRE

AUDIO CONTROL PANEL BLK/YEL WIRE BODY DOMAIN CONTROLLER BRN WIRE COMPUTER DATA LINES SYSTEM EMERGENCY LOUDSPEAKER FUSE 1 GPS ANTENNA GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE HEAD UNIT HOT W/ BI-STABLE RELAY ENERGIZED MICROPHONE NCA WIRE RED WIRE RED/VIO WIRE RED/YEL WIRE SDARS ANTENNA TELEMATIC COMMUNICATION BOX (IF EQUIPPED) (CENTER REAR OF ROOF) W/ CAR SHARING MODULE W/ TELEMATICS W/O CAR SHARING MODULE W/O TELEMATICS WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE

ACOUSTIC PEDESTRIAN PROTECTION SPEAKER ACOUSTIC PEDESTRIAN PROTECTION SPEAKER 2 BLK WIRE BLK/RED WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE BRN/RED WIRE BRN/WHT WIRE FUSE 38 FUSE 59 GRN WIRE GRN/GRY WIRE GRN/RED WIRE GRY WIRE HEAD UNIT HOT AT ALL TIMES HOT W/ TERMINAL NCA WIRE ORG/ WIRE PREPARING THE NFC READER RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT FRONT POWER DISTRIBUTION BOX WHT WIRE WLAN ANTENNA

AUDIO CONTROL PANEL BLK/YEL WIRE BODY DOMAIN CONTROLLER BRN WIRE COMPUTER DATA LINES SYSTEM EMERGENCY LOUDSPEAKER FUSE 1 GPS ANTENNA GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE HEAD UNIT HOT W/ BI-STABLE RELAY ENERGIZED MICROPHONE NCA WIRE RED WIRE RED/BLK WIRE RED/VIO WIRE RED/YEL WIRE SDARS ANTENNA TELEMATIC COMMUNICATION BOX (IF EQUIPPED) (CENTER REAR OF ROOF) W/ CAR SHARING MODULE W/ TELEMATICS W/O CAR SHARING MODULE W/O TELEMATICS WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE

BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLUETOOTH ANTENNA BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 217 GRN WIRE HEAD UNIT HOT AT ALL TIMES LEFT FRONT MID-RANGE SPEAKER LEFT FRONT TWEETER LEFT REAR MID- RANGE SPEAKER 2 LEFT REAR TWEETER 2 NCA WIRE ORG/ WIRE REAR POWER DISTRIBUTION BOX RED WIRE RED/BLK WIRE RED/YEL WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/RED WIRE WLAN ANTENNA YEL WIRE

BRN WIRE COMPUTER DATA LINES SYSTEM GPS ANTENNA GRN WIRE GRN/GRY WIRE HEAD UNIT HEATED REAR WINDOW BAND ELIMINATION CIRCUIT 2 NCA WIRE RECEIVER AUDIO MODULE RED/VIO WIRE RED/WHT WIRE SDARS ANTENNA W/ TELEMATICS W/O TELEMATICS WHT WIRE WHT/GRY WIRE YEL WIRE

BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLUETOOTH ANTENNA BRN WIRE GRN WIRE HEAD UNIT LEFT FRONT MID-RANGE SPEAKER LEFT FRONT TWEETER NCA WIRE ORG/ WIRE RED WIRE RED/YEL WIRE RIGHT FRONT BASS SPEAKER RIGHT FRONT MID-RANGE SPEAKER RIGHT FRONT TWEETER WHT WIRE WHT/BLK WIRE WLAN ANTENNA