Here is what I drew up before I started.
Make sure you soder the negative wire also.
I placed a wire from the neg bulb to the side of the box so when it opens it will make contact with the neg wire that is connected to the battery which turns the LED bulb on.
Here is a picture of the 9V battery connector.
The battery is held in place by the heavy duty double sided tape! (holds upt o 5lbs) and i just electric taped all the wires down =)
And the finished product...Sorry if the directions are confusing I tried my best =)