Has anyone purchased or updated the Navigation Maps on iDrive? My 2009 car states 2008-2 maps which occasionally is causing me problems as it tries to route me on roads that have been closed, or indeed around new roads it knows nothing about. So, I'd like to get this updated, but it appears you can't simply pop DVDs in any more as the car takes between 2-3 hours to update along with requiring some form of FSC auth code and therefore is apparently best done at a dealership, likely with increased costs for doing so... I'll speak with the dealership next week when I'm in to finally get the bathtub rear lights finally fixed...