91 M30 power window problem

[mu911356]

In the process of getting my 91 M30 ready to sell. I have had intermittent problems with the passenger side power window working. I replaced the power window motor, just swapped out the combo swtich on the driver's side and the single switch on the passenger's side, still no dice. Any ideas? The switches do seem to work/getting power to the motors as the clock does dim a bit when actuated.

Any advice would be appreciated!