The picture above shows how the circuit might look if a piece of circuit board is used to help organize the components that are soldered together on the back of the board.  You can make your own circuit board out of some inflammable material.  A doubled up piece of black vinyl electrical tape will work.  You can create the hole with a pin or other thin sharp pointed object.  Again, in the picture above, the microphone element is included for the purpose of demonstrating the complete circuit.