Im putting some s60 seats in my prius and cant figure out how to power them up. I have the wiring diagram and have talked to the volvo dealer service. They thought all I needed were power and ground to the main harness. I see seat belt, seat heat, airbag, sensors and power.

I hooked the +12v and -12v up but no joy.

I can take pics of the diagrams and post if needed.

Can anyone offer some help or point me in the right direction? Why are both seats acting like they have no power? The brain is on the bottom of the drivers seat.