Which trailer <span class="highlight">wiring</span> socket to fit.

Phil,
Fit a standard 7 pin plug either round or the flat narva, as if You need to hire a trailer they normally supply an adaptor.
I think the reed switch version is for sonar equipped vehicles so as the b--- thing is not beeping as You are reversing.
Mike.

G'day Phil
A 7 pin flat plug is probably the most common and reliable as they don't seem to fall out as often as the round 7's do.
The reed switch is not for LED lights at all, it is to switch off the reverse camera eath if and when you open the lid to insert the plug.
The little MAGGOT in the lid allows the reed to open and therefore turns off the camera earth cos why do you want to see the trailer all the time.
The Magnet closes the reed when the lid is closed and makes it so you can use the camera.
All that is for normal people though and I would switch a camera manually anyway.

You can confuse things and add a 12 pin and use more pins for the same purpose or switch more things on and off in the trailer if you so desire.

If a reed is used anywhere it is only rated to a few milliamps and not for lights, even a few LED arrays will fry a reed quite swiftly and they are only mercury wetted contacts. As you know reeds burn well.

PS Some people would use a 24pin connector if they could get one, after all more is better isn't it.

You can use pin 2 for reverse signal or with the plug wired correctly you can use 2 as a feed for a reverse camera on a trailer, switched from the front of course.

Not sure who tries to use REEDS and LEDS, perhaps they don't they just think it is done.

Ross M

Thanks for the PMs and posts guys. I think that I will just go with the standard seven pin. The reed switch and extra wiring is not needed. No bling or whistles or beepers or proximity sensors on our car. Thank god for that.

Cheers (Hi)

Phil