Adding a existing component to an existing aircraft
On march 25, 2020 I was asked via mumble, if I could add the garmin196 to the Seneca II, hence the AP is not charming. Here ist what I did, an how I did it.
Creating a working copy of the aircraft
At first I aquired the Aircraft. It's part of the sourceforge/svn-repository.
I got the plane searching throught FGADDON/AIRCRAFT (https://sourceforge.net/p/flightgear/fgaddon/HEAD/tree/trunk/Aircraft/) using the SVN system.
note: sourceforge does not support the correct svn-codeline, you need to correct the path starting after trunk'