Real GPS data into Flight sim 9.

Has anyone been able to take actual GPS track data from a Garmin GPS, and
converted it to a replay file in FS 2004?

I realize that the GPS data would not include any pitch or bank information,
but it would have heading information, and position information.

Is the replay file format of Flight sim 2004 available? If nobody has done
this, I'd consider giving it a try.

I would like to take a few of my actual flights and replay them in Flight
simulator to evaluate my flight.

Flight instructors could use data like this when new students first start
doing solo cross country flights to "replay" a students cross country.

Any thoughts?

Brian Heiland