when i get to installing the cross for my figure 8 bachmann track it overloads my controller. unplug it and i have a steady 17+volts. plug it in again and in get boverlooad. if i follow the track it appears to end up with changed polarity due to the pos side ending up mateing up with the negative rail.  any ideas what i should do.  thanks

just getting back in to ho fun  question is do i want to start with the steel track or the nickle silver  .  thanks for your kelp