That's never happened to me. I've had the audio connected (listening to
music) and I did have it on during a landing or two. Will try it out
some more.

The prob I've had with the audio is a loud buzz unless I unplug the
power and run on battery.

Of course, my unit has had problems - sent it in twice. Finally got a
new box.

Dave Butler wrote:

Does anyone else have their Garmin 396 connected to the audio in their
airplane?

If so, do you get terrain warnings every time you approach an airport to
land?

I do, but Garmin doesn't seem to be very interested in helping. I've
exchanged several emails with their tech support. They don't acknowledge
that there is anything wrong.

They say they have "some algorithms" to prevent the audio terrain alert
when approaching an airport to land. They say they might not work
correctly for all airports. My experience is that they don't work for
any airport I have visited.

If anyone else is seeing this behavior, please contact Garmin so that
they will know I'm not the only one.

Thanks.