my Drivers side left window Does not come down. I've verified that the regulator works, I've had it up and down with a drill battery. However none of the switches work for that window. Everyone else does. I've had the connections cleaned and everything I can think of but it's still not working. It was said that there's something wrong with the harness between the switch in the B-pillar. does this sound right?

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed