This site is being deprecated.
Please see the official X‑Plane Support page for help.
The autopilot seems to be tied to the Garmin 530. There is probably a way to change it to the Garmin 430 using Planemaker, but I have no idea how you would go about it.You might try doing a Google search for X-plane help groups planemaker. Good luck!
This site is no longer being actively maintained.