GMC Cab & Chassis C2500 (1989-2000) Overhead console lamps circuit, old style base

BLK WIRE COURTESY LAMPS CIRCUIT CTSY FUSE 3 FRONT DOME/ READING LAMPS HEADLAMP, PANEL DIMMER SWITCH COURTESY LAMPS HOT AT ALL TIMES I/P FUSE BLOCK INT LAMP OUTPUT ORG/ WIRE OVERHEAD CONSOLE READING LAMPS REAR DOME READING LAMPS REMOTE CONTROL DOOR LOCK RECEIVER (W/RKE) (BEHIND CENTER OF DASH) WHT WIRE