Thanks Shawn,
Are you saying there is no way to do this without upgrading the screen for the SV network and replacing
my AHRS and ADSB-in? Would my current setup work if the GPS-2020 was wired to the AF-Pilot serial
input directly?

My other alternative is to replace my Trig TT21 with a Trig TT22 and bypass the EFIS completely. The combination of
SV-2020 + TT22 is not officially supported by Trig or Dynon, but I think it should work as an ADSB out solution.