If I am understanding correctly, I think you are suggesting I get a DC power source for my existing MTH TIU/Remote that I already have. That is doable. I am thinking of buying either the Bridgewerks Mag 15 or the USA Trains Power 10. That way I can operate my MTH GG-1 and get the benefits of PS2 functions and also operate my Aristo-Craft trolleys that only go forward or reverse (no sound, no functions). THanks!