I know little about trains but I am trying to help my elderly neighbor set up a train set he purchased seven months ago.  I have watched the DVD which comes with the kit but it does not mention the remote switches.  The track is assembled and the train is running.

The switches are rectangular.  The green wire from the track plugs into the top. The switch housing have two prongs sticking out of each side.  Male on one side and female on the other.  They connect together forming one long rectangle. 

I think this is the same item.
http://www.amazon.com/gp/product/images/B0000CGB3J/ref=dp_image_text_0/102-5819472-3225709?ie=UTF8&n=165793011&s=toys-and-games

What else do we need to do?
How are the switches powered?

This kit was supposed to has everything  (my neighbor claims).  The only unused object is a red track wire which has the three-hole black connector on only one end.  The connector fits the track but not the side prongs. The other end is simply cut off.  Do I wire it in to the side prongs somehow?

I have done residential wiring so I should be able to do what ever is needed.

Whoever's bright idea is was to not include a written manual but only a instructional DVD oughtta be...well, no need to make threats.  It is very frustrating for this older gentleman who does not own a DVD player and has to ask a neighbor to watch it for him (only to find it doesn't help any).  Thanks in advance.

Frustrated in Central Maine,
Stephen