After you get your fuse panel fixed, I would diagnose by unplugging one component at a time that is on that fuse circuit until the fuse quits blowing, then at least you know where to concentrate your search. I have seen wires smashed under factory fasteners before, shorting to ground. I would also caution against oversizing the fuse - if there's a short, something has to go & you don't want it to be wiring.