Add a Push-to-Talk Button to My 2-Way Radio

Hi everyone. I have no education in electrical engineering but have a project that I need help. Can any one help me with this?? MY PROJECT: Add a push to talk button to my 2 way radio. With my mic added to a helmet, I want to be able to use the push to talk button to activate the mic. It can be done but I cannot figure out the the wiring. MY SUPPLIES: Midland 2 way radio m101 mic (red and green wires soldered on own post) 2.5 mm plug push to talk switch (has 4 wires-red, green, black, white) 2 conductor wire WHAT IM SUPPOSED TO DO: Wire in series the push to talk with the mic which in turn gets soldered to the 2.5 plug. Sounds easy but having problem because there are 4 wires coming from the mic. The red and green were soldered on the mic (black and white didnt appeared to be connected) The push to talk has 4 wires-same colors. on the plug-the black/red were connected and the green/white were connected on the plug. I dont know how the mic (red/black) wires and PTT wires get connected to the plug. On the sleeve or ring? And which wire from the push to talk gets soldered with the mic wires? Can anybody help??