KCDW
The 196 doesnt have the setting you mention.
I had the GPS switched on and running in "Simulation" mode, then I started up MFS. Not sure if it makes any difference.
Sorry if I'm telling you things you already know but I noticed this in the readme that comes with GPSOut...
"It is also known to work with real Garmin GPS units which support input in the
"Series 400 Aviation" format (this may also be known as ARNAV, or KING format,
but I cannot be sure of that). For this you should set just AV400 as the only
sentence, and the speed is normally 9600 in this format, but it may be adjustable.
I've received confirmation that the "Aviation In" mode works with the AV400
protocol, with the Garmin GPS III Pilot and the GPS 196. The GPS has to be
in simulator mode, and then shows the correct track and vertical data as well
as position and speed."
I suppose the main things to note are that you must have your GPS unit in "Simulation" mode and "Aviation In" and be using AV400 sentences (AV400 set in both the GPSOut.ini file and selected in your GPS unit.)
Let me know if you need anymore info - it should work!
I'll check my settings tonight when I get home and post any further info I can find.