The problem I see with the posted GTN650 manual, is that it is for the AML STC. It only refers to integration with certified products. I can?t find any information about integrating the unit into the experimental side of Garmin. Specifically, the G3X, GSU73, GTX23 ES, GDL 39, etc. No information on pin outs or how to configure the 232 and 429 ports. I?m receiving my GTN 650 this week, and hopefully Steinair has included some documentation. If not I?ll give them a call. I hate to bug them for every little issue.
I guess I?m typing out loud to ask if such documentation exists? Is there a Garmin installation manual or supplement such as described above?