My son has a 2015 Scirocco 184R with, I think, an RNS 315 media system.

We were under the impression that the latest maps could be downloaded to a 32Gb SD and uploaded to the system via the slot but I can't seem to find any links for that now but there are lots of SD cards available on eBay and elsewhere.

Was I wrong thinking we could update ourselves and if so, where's the best place to get latest maps and what should I expect to pay?

Thanks

J