I found myself using the Garmin GFC 500 quite often in Flight Simulator. So I decided to design, program and print my own. Still a work in progress and first version. :
Garmin GFC 500 Autopilot Flight Overview - Avionics/Panel Discussion - Mooneyspace.com - A community for Mooney aircraft owners and enthusiasts
Garmin GFC 500: Mooney M20 | Our GFC 500 autopilot is now approved for additional Mooney M20 aircraft — select C through G models. Garmin.com/GFC500 | By Garmin Aviation | Facebook
New Aircraft Models Approved for GFC 500 and GFC 600 Autopilots | Garmin Blog