As the UNofficial Funny New Guy, here's my latest. Its been darn near 50 years since I set up the O gauge my parents got me. For the previous 5 years, my Bro's had it runnin', especially around the CHRISTmas tree. So in that few years, I've forgotten how to set this puppy up! What wire(s) do I use to connect the track to my transformer. It seems there was an uncoupler but we can't find it in my Bro's stuff. Was that the connection point? Thanx, for any hep!