I'm trying to make a trigger wire for the projector to turn on the drapes (OK, give me crap about that later). So I get some 18ga stranded wire and a pair of 1/8" connectors, but when I unscrew them to solder in the wire, and I find a central crimping spot, and 2 side posts. Now what do I do. Please don't say "put down the soldering iron and back away from the wire"