Finished installing the GDL 82 and flew the test flight, unit worked flawlessly with zero data errors. Unit was more difficult to install than I anticipated mainly due to lack of space behind the panel, working upside down in the foot well of the cockpit, and the length of the unit with the connector (I had to cut out some of the interior bulkhead behind the panel). I also need to design something that allows zip ties to be installed with one hand . Here is a picture of the panel as I was working on it, had to remove most of the avionics to get my hands in and hook up the wiring.
All good to go now for 2020