when I installed mine I just pulled the connector off the stock actuators, The stock connector had 4 wires I used some test clips and connected the 2 wires from the aftermarket actuators to the diffrent wires on the stock connecters until I found the 2 that worked. The I spliced the wires together and everything works just like the stock ones. I did not have to change any relays or hook up any ground wires or anything.