Seat problem

Ok so I have a 1998 GT with cloth seats. I bought leather seats out of a 2000 S281 look great but don't hook up directly. But thats not my problem. My problem is that I took my power seat out then decided to not put the leather seats in because I need $ for a new trans. Ok so when I hooked up the original driver seat it doesn't power up at all. So i ran the car for a while thinking it needed to charge or something IDK Any help is appriciated. thanks