I understand where your coming from. If the ends were on the wires you would be correct. It would be a no brainer. But I have the AAW update kit which is a pretty nice kit. But it appears that you can plug the wires in both ways on my wiper motor. There are three terminals. one has a single wire and the other two have two wires with one crossing over. Now if I had a wiper motor that worked I could figure this all out. But, I gave my old harness away to someone for their car and my wiper motor does not work so I cannot test it.