Mother's 745T: the interior lights have not worked properly in a while. the timer that's supposed to shut off the lights doesn't ever shut them off. Now it constantly blows the #5 fuse (radio, lighting, antenna, etc). When you install a new fuse it either blows it immediately, or the interior lights go dim (especially the main light...not map lights). The chime never stops as long as the key is in the ignition. I think it's probably the main lighting relay. Has anyone ever had this problem? I would rather diagnose it and send her the part instead of paying the local small town man to tear it apart.

I AND my mother appreciate any input. This chime is about to drive her crazy!