Yes but make sure you use a fuse and big enough wiring and switch so you don't melt it down. If it was mine I would see if there is a ten gauge hot wire back there and use a relay to switch it to your window motor.
It's been half a decade but I remember there being an upgrade with a common off the shelf window motor that had more windings or better gearing or something for the bronco glass. From memory there is a thermal breaker and some limit switches in the tailgate. Supposedly you can get a lot of function back with some cleaning.
Your definitely not the first person to have problems with bronco tailgate glass. If you really are a newb at electricity why not just follow one of the bajjilionty write ups on fixing one instead of trying to reinvent the damn thing