7 Wire Trailer Cord. I'll refer to wire color and gauge to make following along easier. It would have been better if they just shipped the plug WITHOUT connecting the wire.
Wiring and the quality of your wiring matters. A colour coded trailer plug wiring guide to help you require your plugs and sockets. It only takes a small break in a line to short out an entire circuit.
Wiring and the quality of your wiring matters.
I lost my vehicle's trailer socket last week.
If your electrical system is in need of repair, you'll need to fix it up as soon as possible. But I need to install it and can't wait a week to. On our cord, the center wire was yellow.