Does anyone know where the ground is located for passenger side door related to the window switch?

I downloaded the .pdf for the SC400 and have all the scematics but the doc is 4000 pages and the numbers are out of order. I spend the better part of two hours looking.

I have a window that will not go up or down. I am running tests now. The switch was swapped.

THe RL wire tested good when looped with the L wire. The GW wire also tested good. I suspect either the motor went bad or the ground. An after market radio was installed so anything is possible.