I have an 89 300 se. The regular dome light(at the sunroof lever) in the 4th position is supposed to come on and work off the door switches. The light lights up in the 1 & 3 position(I think that is right), but does not come on in the 2nd & 4th. Can anyone tell me what might be the problem? The light that comes on to read by, is it the same light that comes on when you open the door? If not, what is the easiest way to get into that panel to check the bulbs?