I'm from Parkersburg,WV. I have been tiring most of yesterday to get a tool touch pad to work on my Mach 3 cnc. I built a cnc router about a year ago, and now have hooked up a MP2CP pendant from Texas micro circuit and it all works fine. I would like to use the touch pad that I see other mach3 user using. I have hooked up a wire to pin 15 and one to ground and would like to use the auto zero button already on on the screen, will this not work. And do I get the program for this, really not sure what I'm doing any help would be good.