The power wires only function is to power the trailer tail lights and isolate the power draw from the trailer so the vehicle is protected. The situation you are experience should not have anything to do with the power wire unless something was really wired incorrectly.
I have not heard of this problem occurring. But Volkswagens can be tricky. You have to be absolutely sure you have the correct wire so testing the wiring with a circuit tester like # PTW2979 is a must.
I wonder if during... view full answer...
Sometimes hitches can get slightly bent during shipping and this can be fixed by bending the hitch back into place as long as the hitch only has a slight bend to it. If yours isn't lining up I can almost guarantee that is what happened. Some people will use open steps for leverage, vices and even car jacks to apply controlled force to bend the hitch back.
You will want to look for flaking paint and physical stress marks on the hitch before and after you attempt to bend the hitch back.... view full answer...
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