I know for my first light wiring of the module that I got the LED's wired backward and as you know LED's only will light in one direction, easy fix as I knew right quick what I did wrong. My module did work as it should after switching the wires and all was set from the factory in the correct possession. I try to keep my wiring colors to match the RailPro color codes, just easier to trace any problems you might have on down the road. I think you mentioned that you had downloaded several sounds and you didn't want to loose them, I thought these sounds were stored in the hand controller and transfer to the modules is very fast, ie., no loss of sounds. Correct me if I'm wrong.
trainman
