2004 F-250 Compass "Cal"
 

I just bought a 2004 F-250 without an owners manual. The computer by the sunglass holder works great but there's a little box on the right side that is blank. considering how there isn't a compass anywhere else on the truck I'm assuming this is where the compass goes???? it says "cal" underneath.

First Ford of this Gen and I'm kind of lost without an owners manual