Australian Trailer Plug and Socket Pinout Wiring 7 pin Australian Trailer Plug and Socket Pinout Wiring 7 pin Flat and Round by Daniel Bingham 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. Yard Dog: Rewire 4 Pin Trailer Plug, Connector - YouTube Click to view2:59Yard Dog: Rewire 4 Pin Trailer Plug, Connector Jac Rentals. Loading Utility Trailer 03 - 4 Pin Trailer Wiring and Diagram how to extend and or replace a trailer 4 pin connectorAuthor: Jac RentalsViews: 57K Tips for Installing 4-Pin Trailer Wiring | AxleAddict Referring to a wiring diagram for a trailer comes in handy during installation. The white wire is your ground wire, which must be cut short and attached to the front of your trailer frame with a screw to power your lights. The remaining wires get installed underneath. How To Wire Trailer Lights - Trailer Wiring Guide & Videos How To Wire A Trailer. If the lights have gone out on your trailer, it is time to redo the wiring. There is no sense attempting to patch or repair issues with faulty wiring systems when replacement is a quick and easy option. Wiring trailer lights is not as difficult as most anticipate. Dog Trailers - LINTRAN Dog Trailers. Please note: our website is continually in the process of being updated. If there is a particular product you are unable to find or you require further Wiring Diagram for the Bulldog Powered-Drive Kit I spoke to my contact at Bulldog and he informed me that the Bulldog Powered Drive Kit part # BD1824200100 that you referenced can only be installed on the driver side of the trailer due to how the gears of the jack setup. To see how it all wires up check out the wiring diagram I attached that I took from the installation instructions for this kit.