What type of control do you have?
I have an Smartech that came with my aero hawk.

i only needed a 10k ohm resistor and a cabel.

you only need to solder 2 wires.

I lent a ikarus aerofly pro, with a interface, and that works greate.
But i also have a printer cabel interface(self made) for FMS.

If you have a smartech controll i can help you.

Aerofly is much better than the FMS, but you need the interface that costs 20$, and take a copy of a friends aerofly