GMC Acadia II (2016-2019) ground return Wiring diagram

1-YE 2-YE AM/FM BLK WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/WHT WIRE BUTTON SIG COAX COMPUTER DATA LINES SYSTEM DATA 9 (+) DATA BUS 9 DIAGNOSTIC SIG DIMMING CTRL DOWN SIG ERROR SIG GMLAN GMLAN SERIAL GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GROUND GROUND RETURN GRY/BLU WIRE GRY/BRN WIRE GRY/PPL WIRE INFO DISPLAY MODULE LEFT FRONT DOOR SPEAKER LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LIN SERIAL LOCK SIG LOW REF LVDS NCA WIRE POWER SIG PPL/WHT WIRE RADIO CONTROLS REAR ROOF ANTENNA XM RED/YEL WIRE REQUEST SIG SERIAL DATA TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TELEPHONE UP SIG VOICE LOW REF VOICE SIGNAL VOLT REF W/ DIGITAL AUDIO SYSTEM W/O DIGITAL AUDIO SYSTEM WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE