Chevrolet Silverado Classic 1500 HD (2007-2007) trailer wiring provision Wiring diagram

AUDIO AMPLIFIER BACK-UP ALARM BACKUP LAMP (LEFT) BACKUP LAMP- RIGHT BLK WIRE BLK/WHT WIRE CAMPER/ CHEVY GMC CHEVY GMC CLEARANCE LAMPS CRUISE CONTROL MODULE DATA LINK CONNECTOR EXCEPT DUAL WHEELS DUAL WHEELS (IN STEERING WHEEL CONTROLS HARNESS) EXCEPT LUXURY FROM I/P RELAY BLOCK (DIAGRAM 3 OF 4) HAZARD LAMPS SWITCH HEADLAMP DIMMER SWITCH HEADLAMP SWITCH I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) TO I/P RELAY BLOCK (DIAGRAM 3 OF 4) IGNITION KEY ALARM SWITCH TOW/HAUL SWITCH INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT PANEL CLUSTER TIRE PRESSURE MONITOR MODULE LEFT FRONT RIGHT REAR LEFT REAR LEFT REAR TURN SIGNAL LAMP LICENSE LAMP (RIGHT) LICENSE LAMP- LEFT LUXURY (IN CONSOLE HARNESS) MULTI- FUNCTION ACCESSORY SWITCH TRACTION CONTROL SWITCH NCA WIRE RADIO TURN SIGNAL/ HAZARD FLASHER MODULE REAR LAMPS JUNCTION BLOCK (INSIDE OF LEFT REAR FRAME RAIL) REAR SEAT AUDIO CONTROLLER REAR SEAT AUDIO CONTROLLER AUDIO AMPLIFIER REMOTE PLAYBACK DEVICE (CD PLAYER) (EXCEPT LUXURY) DIGITAL RADIO RECEIVER RIGHT FRONT RIGHT REAR TURN SIGNAL LAMP TAIL/STOP LAMP (LEFT) TAIL/STOP LAMP-RIGHT) TAILGATE MARKER LAMP TAN WIRE TRAILER WIRING PROVISION TRANSFER CASE SHIFT CONTROL MODULE TURN SIGNAL/ MULTIFUNCTION SWITCH VEHICLE COMMUNICATION INTERFACE MODULE REAR SEAT ENTERTAINMENT ASSEMBLY W/ DUAL WHEELS WHT WIRE WINDOW/ DOOR LOCK SWITCH (PASSENGER) WIPER SWITCH