Belated thank u to supertruper1988 & WinXP for your info. Had to buy some add'l accessories so didn't get the train up til after new years. But it's finally up & running for my happy grandson!
My problem is not the wire. I'm unable to snap on the rectangular shaped brick piece that is connected to the wires to each side of the flat support under the track. I'll send a couple of pictures to give a visual of the problem i'm having.