I have one question getting back to Andy's question about FLARM GPS being fed into a transponder for ADS-B out usage (and Darryl, I apologize in advance if you already answered this).... But, "in a hypothetical world where cats and dogs sleep together, and the FAA decided to allow non-TSO'd GPSs to be used for VFR operations".... would there be anything technically missing that would prevent a FLARM GPS from being used as a GPS source for ADS-B out (e.g. protocol or some missing information in the data sentences that would result in the transponder from forwarding the GPS data?

Better change that to ..."in a hypothetical world where Hillary and Trump sleep together". I'm just trying to understand when someone says "Can't do it" whether that is based on technical or regulation reasons.