Situation:
Log cabin
Home owner (don't you love 'em!) cut in one box for outside light by entry door - has feed, but impossible to pull another wire (fed via door frame)
I seem to remember a 3-way that "talked" over the feed line - like X-10, but can't seem to find it - Leviton if I recall..
Anyone have a better memory than mine - sometimes I think I have a photographic memory, but ran out of film a few years ago <grin>.
Thanks!
Grov
