Any ideas or thoughts on making a edge finder come touch off tool

[suesi34e]

Hi Guys,
I am back again in need of a bit more help on a zero out tool come edge finder.Thanks very much for the help already. Here is a pic of a male connector I wantto use it is 6 pin male, I have the female in my control box wired up.
I was thinking of using a banana plug as suggested, I hope that would allow meto switch between tools physically and when using mach 3.

I am stuck on what spec wire to use and is single core suitable?
Also can some help me write a macro or point me in the right direction? I wouldnot now where to start. I am still trying to learn the G code! I have got mymill going well I am cautiously cutting squares in a piece of Perspex.
I look forward to seeing what you guys can help me with as I know you give goodadvice.
Many thanks
Suesi