GMC Sierra 2500 HD (2002-2012) nca Wiring diagrams

17 6 PNK 12 VOLT SW SIG WIRE 8 9 DATA BUS (+) DATA BUS (-) ANTI-LOCK BRAKES SYSTEM AUDIO/VIDEO ADAPTER AUX VID H BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) CAMERA SIG (+) VOICE SIG/ LOW REF CAMERA SIG (-) VIDEO SIG/ DRAIN WIRE COMPUTER DATA LINES CRUISE CONTROL SYSTEM DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE DRAIN WIRE DVD+ R DVD+ DVD AUD SH R AUX AUD DRAIN WIRE DVD GRY WIRE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INFRARED- DRAIN WIRE L AUX AUDIO LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NAVIGATION SYSTEM NCA WIRE NEXT VOLUME SOURCE PREVIOUS UP ORG/BLK WIRE PNK 7 8 9 10 11 12 13 14 15 16 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL R AUX AUDIO RADIO RIGHT STEERING WHEEL CONTROL SWITCH SEEK SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE VOLUME VOICE REC DOWN VSS W/O AUTOMATIC CRUISE CONTROL W/ AUTOMATIC CRUISE CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE

2550 512 511 546 599 7066 340 GND RF AUD+ LF AUD+ RR AUD+ LR AUD+ REM SIG AMP FUSE 41 FUSE 38 BLK WIRE BRN WIRE BRN/WHT WIRE COAX COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GASOLINE DIESEL HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFO FUSE 22 LOW REF LT BLU/BLK WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ONSTAR BUTTON ASSEMBLY LOGIC INSIDE REARVIEW MIRROR (ISRVM) ORG/BLK WIRE POWER DISTRIBUTION SYSTEM RADIO RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RSE FUSE 19 TAN WIRE USB CABLE USB RECEPTACLE (IF EQUIPPED) VOICE SIG W/ ONSTAR W/ REAR SEAT ENTERTAINMENT PACKAGE WHT WIRE YEL/BLK WIRE

AUD SIG BLK WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE (IN OVERHEAD CONSOLE) CELLULAR/ NAVIGATION ANTENNA CELLULAR/ NAVIGATION, DIGITAL RADIO ANTENNA COAX COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GREEN LED GRY WIRE KEYPAD SIG LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOW REF LT BLU/BLK WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE RED LED WIRE RED/WHT WIRE SHIELD SUPPLY TAN WIRE TAN/BLK WIRE VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND CENTER OF DASH) VOICE SIG W/ ONSTAR WHT WIRE YEL/BLK WIRE

AMPLF+ BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRAIN WIRE F CENTR SPK- GMLAN GRY WIRE INFRARED REF INFRARED V L INFRARED L SUBWFR - LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LF AUD + LF SPK - LR AUD + LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MICRO SIG + NCA WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE R INFRARED R SUBWFR + REAR SEAT AUDIO (RSA) CONTROL RED/WHT WIRE RF AUD + RF SPK - RR AUD - SUBWOOFER SPEAKER SYSTEM TAN WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

AUD LOW REF BLK WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE CENTER I/P SPEAKER CREW CAB EXTENDED CAB DK BLU WIRE DK GRN WIRE DVD DVD COMM ENABLE SIG GRY WIRE I/P FUSE BLOCK (LEFT SIDE OF DASH, INFRARED TRANSMITTER L AUD SIG L DVD+ LEFT FRONT SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR SPEAKER LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/BLK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE R AUD SIG R DVD+ RED/WHT WIRE RIGHT FRONT SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT REAR SPEAKER SHIELD SIGNAL TAN WIRE TAN/WHT WIRE VIDEO CNTRL VIDEO DISPLAY VIDEO SIG VOLT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

17 18 19 20 21 22 23 24 AMPL- DRAIN WIRE 17 6 PNK 12 VOLT SW SIG WIRE 8 9 DATA BUS (+) DATA BUS (-) ANTI-LOCK BRAKES SYSTEM AUDIO/VIDEO ADAPTER AUX VID H BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) CAMERA SIG (-) LOW REF/ DRAIN WIRE CAMERA VIDEO SIG (+) VOICE SIG/ LOW REF COMPUTER DATA LINES CRUISE CONTROL SYSTEM DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE DRAIN WIRE DVD+ R DVD+ DVD AUD SH R AUX AUD DRAIN WIRE DVD GRY WIRE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INFRARED- DRAIN WIRE L AUX AUDIO LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NAVIGATION SYSTEM NCA WIRE NEXT PREVIOUS SOURCE UP ORG/BLK WIRE PNK PNK WIRE PNK PPL 7 8 9 10 11 12 13 14 15 16 AMPL+ WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL R AUX AUDIO RADIO RIGHT STEERING WHEEL CONTROL SWITCH SEEK SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE VOICE VOLUME VOLUME REC DOWN VSS W/O AUTOMATIC CRUISE CONTROL W/ AUTOMATIC CRUISE CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE

AUD SIG BLK WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE (IN OVERHEAD CONSOLE) CELLULAR/ NAVIGATION ANTENNA CELLULAR/ NAVIGATION, DIGITAL RADIO ANTENNA COAX COMPUTER DATA LINES SYSTEM DIGITAL AUDIO SYSTEM W/ S-BAND, TRAFFIC DIGITAL AUDIO SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GREEN LED GRY WIRE KEYPAD SIG LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK WIRE PNK/BLK WIRE RED LED WIRE RED/WHT WIRE SHIELD SUPPLY TAN WIRE TAN/BLK WIRE VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND CENTER OF DASH) VOICE SIG W/ ONSTAR W/ ONSTAR W/O ONSTAR W/O S-BAND, TRAFFIC WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLU DK WIRE BLU LT WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CREW CAB CREW CAB EXTENDED CAB DK BLU WIRE DK GRN WIRE DRAIN WIRE EXTENDED CAB GMLAN GRY WIRE I/P FUSE BLOCK (LEFT SIDE OF DASH, INFRARED REF INFRARED V L INFRARED LEFT FRONT SPEAKER LEFT REAR SPEAKER LT BLU WIRE LT GRN WIRE NCA WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PPL/WHT WIRE R INFRARED REAR SEAT AUDIO (RSA) CONTROL (IF EQUIPPED) RED/WHT WIRE RIGHT FRONT SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT REAR SPEAKER TAN WIRE W/ DUAL EXTENDED RANGE QUARTER MOUNTED, DUAL FRONT DOOR MOUNTED 4 SPEAKER SYSTEM W/ PERFORMANCE ENHANCED AUDIO W/ S-BAND DIGITAL AUDIO SYSTEM / VEHICLE COMUNICATION SYSTEM WHT WIRE YEL WIRE

17 6 PNK 12 VOLT SW SIG WIRE 8 9 DATA BUS (+) DATA BUS (-) ANTI-LOCK BRAKES SYSTEM AUD LOW REF AUDIO/VIDEO ADAPTER AUX VID H BLK WIRE BLUNT CUT) BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN/WHT WIRE CAMERA SIG (+) VOICE SIG/REF CAMERA SIG (-) LOW REF/ DRAIN WIRE COMPUTER DATA LINES CRUISE CONTROL SYSTEM DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE DRAIN WIRE DVD+ R DVD+ DVD AUD SH R AUX AUD DRAIN WIRE DVD DVD COMM ENABLE SIG GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INFRARED TRANSMITTER INFRARED- DRAIN WIRE L AUD SIG L AUX AUDIO L DVD+ LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NAVIGATION SYSTEM NCA WIRE ORG/BLK WIRE PNK 7 8 9 10 11 12 13 14 15 16 WIRE PNK PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE R AUD SIG R AUX AUDIO R DVD+ RADIO RED/WHT WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RIGHT STEERING WHEEL CONTROL SWITCH RSE FUSE 19 SHIELD SIGNAL SOURCE PREVIOUS SEEK SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE VIDEO CNTRL VIDEO DISPLAY VIDEO SIG VOLT VOLUME VOICE NEXT VOLUME DOWN REC UP VSS W/ REAR SEAT ENTERTAINMENT PACKAGE W/O AUTOMATIC CRUISE CONTROL W/ AUTOMATIC CRUISE CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 367 368 2099 L AUD+ R AUD+ DRAIN WIRE 1 2 3 4 B+ LF AUD+ RF AUD+ VOICE SIG/ 1999 1946 659 LR AUD- RR AUD- LOW REF 372 388 1573 L AUD- R AUD- DRAIN WIRE 599 546 658 LR AUD+ RR AUD+ VOICE SIG AMP FUSE 41 FUSE 38 ANTENNA AUD SIG BLK WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE (IN OVERHEAD CONSOLE) CELLULAR/ NAVIGATION ANTENNA CELLULAR/ NAVIGATION, DIGITAL RADIO ANTENNA CELLULAR/NAVIGATION, DIGITAL RADIO ANTENNA (LEFT FRONT OF ROOF) COAX COAX COAX COMPUTER DATA LINES SYSTEM CUT) DIGITAL RADIO RECEIVER (BEHIND RIGHT END OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GREEN LED GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFO FUSE 22 KEYPAD SIG LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOW REF LT BLU/BLK WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM RADIO RED LED WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RSE FUSE 19 SHIELD SUPPLY TAN WIRE TAN/BLK WIRE TAN/WHT WIRE USB CABLE USB CABLE USB RECEPTACLE (IF EQUIPPED) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND CENTER OF DASH) VOICE SIG W/ ONSTAR W/ REAR SEAT ENTERTAINMENT PACKAGE WHT WIRE YEL WIRE YEL/BLK WIRE