Garmin 300XL and ADS-B out

Until the new Dynon pucks are out I am using my Garmin 300XL as a source. Given the age of the unit (although IFR cert'd) is there any useful level of integrity I can take advantage of with the Dynon transponder to trigger the ADB-IN for 2016?

There is not a way to configure Skyview to use a 300XL as a source with any integrity.

If you have our current 250 puck, that will work after 2016.