after a serious morning with the spaggetti behind dash ,I conclude the fella who replaced my lights(headlamps) has fitted wrong switch/wired it up incorrectly, so>I have a.n.other switch ,can anyone on here sreer me towards a site/book that shows clearly , the take off spade(s) No."s and to which part of h/lamp sub system they go to? e.g.>double spade numbered 30 ? where too? ta 4 any advice re this