I have a Aristo C Mallet, the tender has to wires going down to the wheels, they are now cut loose and I do not have a wiring diagram of the tender to determine what they are for. I think they are a further power pickup going to the loco. I bought this used, any help on a diagram or what or where the wires go would be appreciated. Just getting started on my G scale RR so new to this forum. Tom Maine.