Bought an inexpensive handle and PTT for the control stick from ACS. Drilled a hole in the stick and installed the wiring. I want only the PTT on the stick because I once rented a plane with the auto pilot also on the stick and it was too easy to accidently turn the autopilot on. The first time it happend it gave me a very good startle when the stick started fighting me.i would rather it take a very consious movement to turn the autopilot on and off.