I might still have the wiring from mine.
I used 2 on-off-on toggle switches, and one momentary.
to go up:
switch one in the up position gives one wire to the motor a positive.
switch two in the up position gives the other wire a negative.
momentary switch provides power to switches 1 and 2 and makes the window go up.
to do down:
switch one in the down position gives one wire to the motor a positive.
switch two in the down position gives the other wire a negative.
momentary switch provides power to switches 1 and 2 and makes the window go down.
I could draw out a diagram if you wanted to try this way. But Im sure there are others on here who have a better way of wiring it.
The window motor is only a 2 wire, hooked up one way goes up, then reverse the polarity and the window goes down.