I have a Polaris 9350 Sport cleaner and the wires pulled out of the plug of floating cable plug that connects to the controller. I purchased a new plug, but there are 4 holes for the wires, but only 3 wires in the cable. Is there a video that shows how to connect which wire to the correct hole? Does it require soldering? I’m not an electrician...any help would be appreciated! Thanks in advance.