7 Wire Trailer Plug. Here's the wiring diagrams showing the pin out for the plug and socket for the most common circle and rectangle trailer connections in use in Australia. How to Wire Lights on a Trailer
Video tutorial on how to wire trailer lights. A colour coded trailer plug wiring guide to help you require your plugs and sockets. For length, have the plug extend a couple inches.
The trailer battery is a full size deep cycle battery.
I bought all the wires, plugs, grommets, OEM connectors, pins and the universal trailer hitch plug.
The dealer may actually be able to get you the plug, with the harnesses. So here I have an older trailer which needed some work, along with re-wiring the lights. A colour coded trailer plug wiring guide to help you require your plugs and sockets.
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