I have a 93 190E that seems to have a short in the electrical system. The radio goes on and off about every three or four days. When it comes on, it stays on for a few days and when it goes off it stays off for several days at a time.
The dome light and the clock mirror the radio. They are either all on or all off. What is even stranger is that the dome light does come on when you open the back doors (but not the front)
Any suggestions on what would cause this problem and what needs to be done to correct it?