What else..... windows

[dinglefro]

OK so after searching for days on end I can't seem to find the key answer to my issue. So after I did a dash swap only my passenger rear Window works. The other three do nothing at both the individual switch as well as the master switch. I do have power going to the master and have tried cleaning the contacts. I have also tried a new master switch. Did I maybe miss a ground or would none of the windows work if I didn't have a ground connected? Any help would would be greatly appreciated thanks.

 

[dinglefro]

OK so update is I pulled the drivers door motor and gave it a little rejuvenation. Hooked it to my car battery and works great. Checked power after switch and Bing 12v. Put it all together and notta. Must be a ground then? Does anyone know all the location of the grounds? If so any help would be great.