The other day went to put the passenger rear window down in my wifes 2006 commander. looked back and it was going down. looked again and it wasn't moving but the motor was still running. so the motor is fine. window will slide up and down by hand. based on google looks like maybe the cable on the regulator snapped. can't find one anywhere. checked rockauto, checked amazon, checked google. can't find a new one anywhere. has anyone else had to replace this. where did you find one? how hard was it?