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

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

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

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

BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM FUSE 212 GPS ANTENNA GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRY WIRE HEAD UNIT HOT W/ TERMINAL LEFT FRONT BASS SPEAKER LEFT FRONT MID-RANGE SPEAKER LEFT FRONT TWEETER MICROPHONE (W/O TELEMATICS) MICROPHONE 2 + NCA WIRE REAR POWER DISTRIBUTION BOX REAR WINDOW ANTENNA RED WIRE RED/GRN WIRE SDARS ANTENNA VIO/BRN WIRE VIO/RED WIRE VIO/YEL WIRE W/ TELEMATICS W/O TELEMATICS WHT WIRE YEL/BRN WIRE YEL/RED 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

BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 212 GPS ANTENNA GRN WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE HEAD UNIT HOT W/ LEFT FRONT BASS SPEAKER LEFT FRONT MID-RANGE SPEAKER LEFT REAR MID-RANGE SPEAKER MICROPHONE (W/O TELEMATICS) MICROPHONE 2 + NCA WIRE REAR POWER DISTRIBUTION BOX REAR WINDOW ANTENNA RED WIRE RED/GRN WIRE RELAY ENERGIZED RIGHT FRONT BASS SPEAKER RIGHT FRONT MID-RANGE SPEAKER RIGHT REAR MID-RANGE SPEAKER SDARS ANTENNA VIO/YEL WIRE W/ TELEMATICS W/O TELEMATICS WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/RED 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

BLK/BRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 212 GPS ANTENNA GRN WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE HEAD UNIT HOT W/ TERMINAL MICROPHONE 2 + NCA WIRE REAR POWER DISTRIBUTION BOX REAR WINDOW ANTENNA RED WIRE RED/GRN WIRE SDARS ANTENNA W/ TELEMATICS W/O TELEMATICS WHT WIRE WHT/BRN WIRE WHT/RED WIRE

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