GRT EFIS SX & GARMIN 250XL

I am unable to get my external Garmin GNC 250 XL to drive the GRT Autopilot system. Does anyone have a GNC 150, 155, 250 or 300 XL hooked to their GRT EFIS and use it to drive the autopilot? If so, please contact me at the listed Email . I have some questions about settings. Or leave a reply on how it works and what is required in the setup communication in the GRT EFIS Menu.

Thank you.

[email protected]

I have a garmin 250 and a grt sport with grt autopilot servos and the garmin drives the autopilot fine. I didnt install it but if you need some settings i can check mine.

Thanks

Merlin3,
that is my exact setup. Been trying for 2 years to get the GRT to track a GPS course! I have spoke with GRT multiple times and still NO JOY.

See your PM's I sent my contact Phone information.

Never got a message