Thanks, rogertra for the quick response.  That was so simple and works great, I had been switching wires and trying everything else.  I really feel dumb but like I said, I'm new to this hobby and I,m not sure how deep I will get into it.  One thing for sure, I will spend a lot of time on the forum reading all the posting.  Good info.

Thanks again, Vetteman

Hi, new to this Forum and to the train world, so bear with me.  I have two Diesel F7-A Locomotive DCC ready # 63708.  I would like to run them both hook together on the same track, except they would be back to back and running in the same direction.  I lived by the tracks as a kid and used to watch all the trains come by, I alway like the looks of those Diesels hook together one going forward and the other backwards.  They did this when they were pulling large lines of coal cars.  So! can I do this and how can I make this work?  I've been reading a lot messages here and they provide a lot of good info.  
Thanks for any help.

PS, I am only running them as DC for right now.