Buick LaCrosse III (2016-2019) fm/rfr Wiring diagrams

AM/FM 1 AUXILIARY AUDIO INPUT BLK WIRE BLK/YEL WIRE BRN WIRE BU GPS COAX COAX BU GPS COAX GY GPS/CELL COAX PK GPS COAX VT GPS/CELL COMPUTER DATA LINES SYSTEM CU HD/XM DK GRN/DK BLU WIRE FM/RFR GRY/LT GRN WIRE GRY/VIO WIRE GY GPS LEFT STEERING WHEEL CONTROLS SWITCH LOCAL SERIAL DATA BUS 10 LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA 2 MEDIA DISC PLAYER MOST CONTROL MOST SERIAL DATA (+) MUTE VOICE NAVIGATION ANTENNA SIGNAL SPLITTER (W/ CELL) (CENTER OF REAR WINDOW SHELF) NAVIGATION ANTENNA SIGNAL SPLITTER (W/O CELL) (CENTER OF REAR WINDOW SHELF) RADIO RADIO ANTENNA REAR ROOF ANTENNA RED/VIO WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER RFR TELEPHONE VOICE SIG USB USB BK W/ ONSTAR W/O ONSTAR W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE

AM/FM 1 AUXILIARY AUDIO INPUT BATT POS VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE COAX COAX BU GPS COAX GY GPS/CELL COAX PK GPS COAX VT GPS/CELL COMPUTER DATA LINES SYSTEM DK GRN/DK BLU WIRE FM/RFR GMLAN SERIAL DATA 2 GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY/LT GRN WIRE GRY/VIO WIRE GY COAX GPS COAX HD/XM CU LEFT STEERING WHEEL CONTROLS SWITCH LF AUDIO LOW REF LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LOGIC LR SPEAKER (+) CTRL LR SPEAKER SIG (-) 1 MEDIA DISC PLAYER MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER (W/ CELL) (CENTER OF REAR WINDOW SHELF) NAVIGATION ANTENNA SIGNAL SPLITTER (W/O CELL) (CENTER OF REAR WINDOW SHELF) NCA WIRE RADIO RADIO ANTENNA REAR ROOF ANTENNA RED/VIO WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE ENABLE SIG I RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 RFR RR SPEAKER (+) CTRL RR SPEAKER SIG (-) 1 SERIAL DATA BUS 10 USB USB BK USB USB W/ ONSTAR W/O ONSTAR W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

AM/FM 1 AUXILIARY AUDIO INPUT BLK WIRE BLK/YEL WIRE BRN WIRE COAX COAX BU GPS COAX GY GPS COAX COAX GY GPS/CELL COAX PK GPS COAX VT GPS/CELL COMPUTER DATA LINES SYSTEM CU HD/XM DK GRN/DK BLU WIRE FM/RFR GRY/LT GRN WIRE GRY/VIO WIRE LEFT STEERING WHEEL CONTROLS SWITCH LOCAL SERIAL DATA BUS 10 LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA 2 MEDIA DISC PLAYER MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER (W/ CELL) (CENTER OF REAR WINDOW SHELF) NAVIGATION ANTENNA SIGNAL SPLITTER (W/O CELL) (CENTER OF REAR WINDOW SHELF) RADIO RADIO ANTENNA REAR ROOF ANTENNA RED/VIO WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER RFR TELEPHONE VOICE SIG USB USB BK USB USB W/ ONSTAR W/O ONSTAR W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE

AM/FM 1 AUXILIARY AUDIO INPUT BK USB BLK WIRE BLK/YEL WIRE BRN WIRE BU GPS COAX COAX BU GPS COAX GY GPS/CELL COAX PK GPS COAX VT GPS/CELL COMPUTER DATA LINES SYSTEM CU HD/XM DK GRN/DK BLU WIRE FM/RFR GRY/LT GRN WIRE GRY/VIO WIRE GY GPS LEFT STEERING WHEEL CONTROLS SWITCH LOCAL SERIAL DATA BUS 10 LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA 2 MEDIA DISC PLAYER MOST CONTROL MOST SERIAL DATA (+) MUTE VOICE NAVIGATION ANTENNA SIGNAL SPLITTER (W/ CELL) (CENTER OF REAR WINDOW SHELF) NAVIGATION ANTENNA SIGNAL SPLITTER (W/O CELL) (CENTER OF REAR WINDOW SHELF) RADIO RADIO ANTENNA REAR ROOF ANTENNA RED/VIO WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER RFR TELEPHONE VOICE SIG USB W/ ONSTAR W/O ONSTAR W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE

AM/FM 1 AUXILIARY AUDIO INPUT BATT POS VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE COAX COAX BU GPS COAX GY GPS/CELL COAX PK GPS COAX VT GPS/CELL COMPUTER DATA LINES SYSTEM DK GRN/DK BLU WIRE FM/RFR GMLAN SERIAL DATA 2 GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY/LT GRN WIRE GRY/VIO WIRE GY COAX GPS COAX HD/XM CU LEFT STEERING WHEEL CONTROLS SWITCH LF AUDIO LOW REF LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LOGIC LR SPEAKER (+) CTRL LR SPEAKER SIG (-) 1 MEDIA DISC PLAYER MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER (W/ CELL) (CENTER OF REAR WINDOW SHELF) NAVIGATION ANTENNA SIGNAL SPLITTER (W/O CELL) (CENTER OF REAR WINDOW SHELF) NCA WIRE RADIO RADIO ANTENNA REAR ROOF ANTENNA RED/VIO WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE ENABLE SIG I RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 RFR RR SPEAKER (+) CTRL RR SPEAKER SIG (-) 1 SERIAL DATA BUS 10 USB USB BK USB USB W/ ONSTAR W/O ONSTAR W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

AM/FM 1 AUXILIARY AUDIO INPUT BK USB BLK WIRE BLK/YEL WIRE BRN WIRE COAX COAX BU GPS COAX GY GPS COAX COAX GY GPS/CELL COAX PK GPS COAX VT GPS/CELL COMPUTER DATA LINES SYSTEM CU HD/XM DK GRN/DK BLU WIRE FM/RFR GRY/LT GRN WIRE GRY/VIO WIRE LEFT STEERING WHEEL CONTROLS SWITCH LOCAL SERIAL DATA BUS 10 LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA 2 MEDIA DISC PLAYER MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER (W/ CELL) (CENTER OF REAR WINDOW SHELF) NAVIGATION ANTENNA SIGNAL SPLITTER (W/O CELL) (CENTER OF REAR WINDOW SHELF) RADIO RADIO ANTENNA REAR ROOF ANTENNA RED/VIO WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER RFR TELEPHONE VOICE SIG USB USB USB W/ ONSTAR W/O ONSTAR W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE