Well, there are two wires marked for the "Y" axis and two marked for the "X" axis coming off the main board. I took my Multimeter and started probing around with known ground wires and volt lines but none of those 4 wires register as a ground or positive. It seems kinda like what
@Luke said... They seem to be acting as "variable resistors"... I'm guessing anyway.
It's a weird setup for sure. When any one of these 4 wires are unsoldered it just starts scrolling up and down or side to side like crazy, depending on which wire is unsoldered. I've been trying to figure it out but I just don't have the knowledge to trace it down to find out what is actually happening. I was hoping I could use a regular GC joystick and make it work but so far, no matter how I wire it, it just sits there when the stick is moved and doesn't do anything.
I guess I will have to spend the dang $30 and get an OEM controller and use a 64CC PE to make it work. I just hate to spend the money and destroy a nice, getting harder to find, OEM controller...