I have an older auto-reversing Coca Cola HO Trolley that runs on Black EZ track.  Most pieces  have 2 wires running underneath that connect to each of the 4 tabs.  The end piece before the bumper has 2 wires but they connect to a glass fuse at one end, the tabs at the other.  Does anyone have any track like this to sell or know where I can find it.  Bachmann is coming out with new Nickle/Silver auto-reversing track but it is pricey and I don't know if it would work with my older track.