I have a window issue on my 93 300D 2.5 Turbo. Sometimes none of my windows or sunroof will work until I lower my driver's front window. Then all the windows will work. Sometimes the driver's window will come down when I lower the pass front window. The driver's window will not come back up until I cut the car off and restart it. I assume I should start in the harness in the door jamb? Any other ideas before I tear it apart?

Huck