Basically the RNS510 will be staying there is the cheaper RNS310 nav and now the new RNS815 in the Touareg, there is no new software due for the RNS510 in the Touareg due to the unit update, but the software for the 815 will not work in the RNS510 so Apparently we will see a new firmware in week 47 and possible new maps around the same time, I don't know what will be on the f/w or maps but can safely say the 815 does have full vw post code searching. So we will have cross our fingers and toes and hope the new maps will do full p/c searching
Darren