This isn't "news", I've been "hacking" VAG group MMI units for years, enabling features that were disabled by default, or adding in features that needed additional hardware then coding in. I thought it was particularly common knowledge how to access the "green menu" from an MMI console, so I can only assume the same was true of RNS (so why this guy took months to work out what he could have googled in minutes is just odd). Add in a decent diagnostics cable (VCDS, you are a god-send) and you can do/retrofit almost anything that was offered as an option. I for example didn't pay for the google maps integration with my nav, but I have it 😉