Buick Regal VI (2017-2020) auxiliary detection sig Wiring diagrams

2.0L TURBO 3.6L AM/FM AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/VIO WIRE CAMERA SIG 2 COAX COAX BK COAX CU COAX YE DISPLAY SIG COAX WH COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING DOWN FUSE 10 FUSE 16 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR LOW LEVEL AUDIO REF MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION SYSTEM NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO REAR VIEW CAMERA CIRCUIT RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEEK UP SEL STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK UP DISPLAY VIO WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO REF VOICE RECOGNITION AUDIO SIG VOL (-) W/ HEAD W/O HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE

2.0L TURBO 3.6L AM/FM AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CAMERA SIG 2 COAX COAX BK COAX CU COAX YE DISPLAY SIG COAX WH COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING DOWN FUSE 10 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLK WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR SPEAKER SIG (-) MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION SYSTEM NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO REAR VIEW CAMERA CIRCUIT RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEEK UP SEL STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK VIO WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO REF VOICE RECOGNITION AUDIO SIG VOL (-) W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE

2.0L TURBO 3.6L AM/FM AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CAMERA SIG 2 COAX COAX BK COAX CU COAX YE DISPLAY SIG COAX WH COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING DOWN FUSE 10 FUSE 16 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION SYSTEM NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO REAR VIEW CAMERA CIRCUIT RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEEK UP SEL RIGHT STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK VIO WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO REF VOICE RECOGNITION AUDIO SIG VOL (-) W/O HEAD-UP DISPLAY W/ HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE

2.0L TURBO 3.6L AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE CELLULAR VOICE LO REF CELLULAR VOICE SIG COAX COAX BK COAX CU XM COAX WH COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING FUSE 10 FUSE 16 FUSE 20 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/YEL WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LF LOW LEVEL AUDIO REF LF LOW LEVEL AUDIO SIG LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR LOW LEVEL AUDIO REF LR LOW LEVEL AUDIO SIG + MUTE NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RF LOW LEVEL AUDIO REF RF LOW LEVEL AUDIO SIG RIGHT RIGHT AUXILIARY AUDIO SIG 2 RR LOW LEVEL AUDIO REF RR LOW LEVEL AUDIO SIG + SEATS SYSTEM SEEK DOWN SEEK UP SEL SERIAL DATA BUS 10 LOW SPD GMLAN SERIAL DATA 2 STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK UP DOWN VIO WIRE VOL (-) VOLT 2 W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

2.0L TURBO 3.6L AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE CELLULAR TELEPHONE LO REF CELLULAR TELEPHONE SIG COAX COAX BK COAX CU XM COAX WH COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING DOWN FUSE 10 FUSE 16 FUSE 20 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLU WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH MUTE NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEL SERIAL DATA BUS 10 LOW SPD GMLAN SERIAL DATA 2 STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK UP LEFT VIO WIRE VOL (-) VOL SEEK UP VOLT 2 W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WHT/BLK WIRE YEL WIRE

2.0L TURBO 3.6L AM/FM AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/VIO WIRE CAMERA SIG 2 COAX COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX DIMMING DOWN FUSE 10 FUSE 16 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR LOW LEVEL AUDIO REF MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION SYSTEM NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO REAR VIEW CAMERA CIRCUIT RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEEK UP SEL STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK UP DISPLAY VIO WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO REF VOICE RECOGNITION AUDIO SIG VOL (-) W/ HEAD W/O HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE YE COAX DISPLAY SIG WH COAX

2.0L TURBO 3.6L AM/FM AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CAMERA SIG 2 COAX COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX DIMMING DOWN FUSE 10 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLK WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR SPEAKER SIG (-) VOICE RECOGNITION AUDIO SIG MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION SYSTEM NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO REAR VIEW CAMERA CIRCUIT RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEEK UP SEL STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK VIO WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO REF VOL (-) W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE YE COAX DISPLAY SIG WH COAX

2.0L TURBO 3.6L AM/FM AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CAMERA SIG 2 COAX COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX DIMMING DOWN FUSE 10 FUSE 16 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION SYSTEM NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO REAR VIEW CAMERA CIRCUIT RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEEK UP SEL RIGHT STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK VIO WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO REF VOICE RECOGNITION AUDIO SIG VOL (-) W/O HEAD-UP DISPLAY W/ HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE YE COAX DISPLAY SIG WH COAX

2.0L TURBO 3.6L AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BK COAX BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE CELLULAR VOICE LO REF CELLULAR VOICE SIG COAX COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX XM DIMMING FUSE 10 FUSE 16 FUSE 20 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/YEL WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LF LOW LEVEL AUDIO REF LF LOW LEVEL AUDIO SIG LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR LOW LEVEL AUDIO REF LR LOW LEVEL AUDIO SIG + MUTE NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RF LOW LEVEL AUDIO REF RF LOW LEVEL AUDIO SIG RIGHT RIGHT AUXILIARY AUDIO SIG 2 RR LOW LEVEL AUDIO REF RR LOW LEVEL AUDIO SIG + SEATS SYSTEM SEEK DOWN SEEK UP SEL SERIAL DATA BUS 10 LOW SPD GMLAN SERIAL DATA 2 STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK UP DOWN VIO WIRE VOL (-) VOLT 2 W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WH COAX WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

2.0L TURBO 3.6L AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BK COAX BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE CELLULAR TELEPHONE LO REF CELLULAR TELEPHONE SIG COAX COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX XM DIMMING DOWN FUSE 10 FUSE 16 FUSE 20 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLU WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LEFT UP LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH MUTE NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEL SERIAL DATA BUS 10 LOW SPD GMLAN SERIAL DATA 2 STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK VIO WIRE VOL (-) VOL SEEK UP VOLT 2 W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WH COAX WHT/BLK WIRE YEL WIRE