I have a 1995 Mercury Grand Marquis LS. You won't believe this!! Every time I swing the drivers side sunvisor to block sun from the side. The #8 fuse for the dash, radio,and all interior lights blows. Also, the power door locks and keyless entry go out. This has been a long standing issue. I just recently figured out moving the sun visor is doing it. Happens every time.
Anybody ever had this one?