Durango seats in Duster

Hi All,

I have a 74 duster that I am putting 2003 Durango power seats. The mounting is pretty straight forward. I have looked over the schematic for the seats and appear to need 12 volts to all 4 pins in. Then the polarity will be changed in the switch. Am I seeing this correct. My second question where to get the 12 volts from. Would like to do it correctly and solder everything up once. What are your thoughts on this. These seats are quite a bit lighter than the stock buckets believe it or not and they look fairly correct.