Thanks for checking. It would appear that Audi use the car spec derived from the VIN to determine if a connection is possible. i.e. does it have the factory hardware....
I also see the "N/A" when I check the my.audi account with my VIN. I'm traveling at the moment so not had the chance to plug in my hardware to test. I thought I read somewhere that you could initiate the connection from the car side. I'll have to look into that, could be wrong.
One option I will try is the MMI update feature. I know this is possible on the 8V A3, that's how you would ingest the custom POI files from my.audi via SD card and the MMI update option is available on the 3g HDD MMI. There is a third party tool to build such POI files. I probably can't post links (new user etc) search for SpeedCameraToPoi on GitHub by mcaddy mcaddy github io audipoi This takes camera data from pocketGPS world and builds the POI files with out using the my.audi site.
Hopefully I'll get time to test this weekend.