2004 Ford F-150 fuse box diagram - StartMyCar Passenger compartment fuse panel / power distribution box diagram; Auxiliary relay box (with DRL) diagram; Auxiliary relay box (without DRL) diagram * Ford F-150 fuse box diagrams change across years, pick the right year of your vehicle: Sparkys Answers - 2003 Ford F150 Interior Fuse Box 2003 Ford F150 Interior Fuse Box Identification. Below you will find an image of the interior or central junction box. Each component is identified and there is a legend below. Clicking on the image will enlarge it. Fuse Legend. 1 (15A) – Radio, Video Cassette Player, Rear Seat Entertainment (RSE) Module, Rear Integrated Control Panel (RICP).