got 4 switchs in box (new) with other track. I understand the green wire plugs into the actual throw switch but there is another green wire with plugs on each end. Where do they go? Me thinks I'm missing some pieces but can't find any references anywhere at Bachmann. Thanks for any help.I'm working a layout(1st) with my 88 year old dad and ez track is easier for him to see and work with so try to be gentle with my dummy questions