Fitting single electrics to a towball.

ooky_123 wrote: I mounted my Tow Electrius to the rear door near the hinges.

The wiring goed though the rubber duct into the body and then is routed out of sight.
I use a 1 Meter coiled extension to attatch to a trailer.

This keeps the electrics clear of 90% of the water we go wading though

Mmm...Good idea, I think I might do that with mine.
At the moment it's as the others have done, mounted to the n/s by the number plate but whoever wired it up, didn't do a great job.
So have just ordered a new socket, cable, rubber cover (mine's gone quite hard and loose) and a pair of s/s sprung number plate clips. These are so I can remove my number plate very easily when the trailer is not in use. So if some scroat pinches it, instead of a number plate, there will just be the word 'STOLEN' in view.
I will be soldering the joints as I hate those coloured Lucar connector joints. Ok for a temporary joint but I much prefer a soldered joint everytime. You can always tape them to bodywork if you think they may become brittle and break down.(?)

Another plus fitting the socket on the door, if I get round to making/buying and fitting a hd steel bumper, it'll be one less job having to do the socket again.

When you attached the socket to the bumper what did you do just drill through, washers on the inside type thing?

Yes, mine had s/s cap screws with large s/s 'penny' washers and s/s nuts.
The wiring had been taken from behind the rear lights in the bumper, not from behind the interior trim on the n/side as in the above 'How to Do It'.
Probably why they weren't working correctly!