[terranosaurusdoug]

Originally Posted by Lazy-Ferret

I will slap you... leave the negative alone... do nothing with it... don't touch it or even look at it.... it goes back on the negative wire of the light with no modification whats so ever.... nada.... nufink...

Either cut, or better still, pull the Positive wire inside the caravan, and put it in to the left of switch, then connect the positive wire of the new lamp (or a new wire if it does not have wires already), to one of the right connections... one will be left empty.... it does not matter which, as you can put that switch up either way.

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Ah right I've got it now

So what's the other connection for