GMC Sierra IV (2018-2022) Navigation circuit, mid/high level w/ amplifier

AUDIO SIG + BATT POSITIVE VOLT BK COAX AM/FM ANT SIG BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE BU COAX GPS BU USB AM/FM ANT SIG CELLULAR TELEPHONE MICROPHONE SIG COAX COMPUTER DATA LINES SYSTEM CU COAX XM DOWN ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) ETHERNET BUS 7 (-) GRN WIRE GRN/RED WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE GRY/YEL WIRE GY LVDS DISPLAY SIG HOT AT ALL TIMES LOGIC LOW REF LVDS MICROPHONE MICROPHONE SIG MUTE NAVIGATION ANTENNA NAVIGATION SYSTEM NCA WIRE OG COAX COAX CAM SIG ORG/RED WIRE PNK WIRE RADIO RADIO ANTENNA RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/BLU WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT STEERING WHEEL CONTROLS SWITCH SEEK LEFT/ SEEK RIGHT/ SELECT STEERING WHEEL AIR BAG COIL USB VIO/YEL WIRE VOICE W/ ONSTAR W/O ONSTAR

AUDIO LOW REF AUDIO SIG + AUXILIARY AUDIO INPUT BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BN COAX CELL CELL/GPS COAX COMPUTER DATA LINES SYSTEM GND SIG GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT FRONT MOBILE TELEPHONE MICROPHONE LOGIC LOW REF LVDS MICROPHONE SIG NCA WIRE POWER DISTRIBUTION SYSTEM RED/BLU WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA (+)9 SER DATA COMM ENABLE SERIAL DATA (-) 9 SERIAL DATA 2 TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE USB USB RECEPTACLE VIO/YEL WIRE VT COAX W/ ONSTAR W/O ONSTAR WHT/BLU WIRE WHT/GRN WIRE YEL WIRE

BACK BACK- WARD BACKUP LAMP CTRL BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX COAX 1-PU COAX COAX 2-PU COAX COAX BG COAX COAX CU COMPUTER DATA LINES SYSTEM FRONT WARD GRN/WHT WIRE GRY/GRN WIRE HOME HOT AT ALL TIMES LOGIC LOW SPEED GMLAN SERIAL DATA 2 LVDS MUTE NCA WIRE RADIO RED/WHT WIRE RIGHT FRONT MOBILE TELEPHONE MICROPHONE SERIAL DATA (-) 9 SERIAL DATA COMMUNICATION ENABLE UNDERHOOD FUSE BLOCK VIO/YEL WIRE W/ DIGITAL AUDIO SYSTEM W/ ONSTAR WHT/BLU WIRE WHT/GRN WIRE WLAN WIRELESS COMMUNICATION ANTENNA

AUDIO AMPLIFIER (UNDER REAR OF CENTER CONSOLE) BATT POS VOLT BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BRN/BLK WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM ETHERNET BUS 6 (-) GRN WIRE GRN/BLK WIRE GRY/BLK WIRE GRY/GRN WIRE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT INSTRUMENT PANEL FUSE BLOCK LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT/REAR SUBWOOFER SPKR (-) LOW REF LEFT/REAR SUBWOOFER SPKR CTRL (+) LF SPKR LF SPKR 1 (-) LF SPKR SIG (-) (1) LR SPKR NCA WIRE RED/YEL WIRE RF SPKR RF SPKR 1 (-) RF SPKR SIG (-) (1) RIGHT FRONT DOOR SPEAKER RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RR SPKR SERIAL DATA 2 SUBWOOFER SPEAKER WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE