Ford Focus (1999 - 2004) - fuse box diagram - Auto Genius Ford Focus (1999 – 2004) – fuse box diagram. Year of production: 1999, 2000, 2001, 2002, 2003, 2004. Passenger compartment fuse box. Ford Focus MK1 – fuse box Interior Fuse Box Location: 2000-2004 Ford Focus - 2004 Click to view0:17Some Fords have multiple interior fuse boxes including in the trunk - the video above will show you where the interior fuse box of your 2004 Focus is located. If your Focus has many options like a sunroof, navigation, heated seats, etc, the more fuses it has.