I realize that the OP has his issue worked out, but I thought I would post my rendition of wiring the same type seat.
I used 99 Cadillac seats that also had the memory position sensors. I eliminated the memory wiring part and wired them with new switches. I used one rocker switch for each motor, with the switch reversing the polarity of the motors.
It actually worked well, and I was able to fit the switches where the openings of the old switches went.
Jim
