i\\\'m trying to put a new light into a toilet which was a cupboard hence no light. got a very good diy book. but on this case could not help , i have a ceiling rose close by hopeing i would create a new loop, had failed attempts. the ceiling rose has one cable going into it live going to live, neutral going to neutral,nothing in the center terminal, can i create a new loop or do i have to go to the light switch to get a loop