Upfitter Provision Schematics

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Mobile Radio (9L4) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: Roof Beacon (5G4/TRW) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 3: Wrecker Lighting (5X7) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 4: Emergency Vehicle Lighting (5Y0) Schematic

Courtesy of GENERAL MOTORS CORP.