I was so delight with my new track: Trix, but there are problems about connection and power supply, i check a crossing 62624, and found 5 wires, 2 yellows, 2 blues, 1 brown. 1 yellow and 1 brown from signal I think, 2 blue and the other yellow from turnout mechanism, so where i can find power supply wires? Should i buy another wires? Thanks!