I have a 2002 Ford Expedition with mileage of 136,210 and 4.6 L engine. About 2 months ago, the overhead compass and outside temperature gauge began flickering and then completely went out. I thought that it might be a fuse, so I checked the manual to see what the fuse number was and its amps (#6- 5A). I replaced it but nothing happened. It still did not come back on. What could be the problem?