Follow that link. Dont get mixed up the 12S Supplementary Socket, is the grey one used to connect up caravans.
Eric
January 2009
I suggest you go to a trailer centre and buy any cheap conector for a trailer as on the back of the packaging are the wiring colours and pin numbers. Sorry I dont have them to hand.
JB
September 2008
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Try fixfault.com to fix trailers.