1998 E300TD. Bought it 3 years ago and rear passenger window never worked. Last weekend I finally dedicated some time and pulled everything apart for troubleshooting. All fuses in all 3 fuse panels are good but there is no power to that door for the window or the courtesy light on the bottom of the door. I show continuity from the ground on the light to the chassis. Anyone have an electrical diagram or other items I should be running down? Really appreciate any help.