Sorry, my M-B doesn't even have nav in it. Next time I visit my folks, I'll see if they have anything newer -- though I think their more modern cars have gone to DVD-based nav, right?

I remember being absolutely outraged when BMW sent me quarterly mailers trying to sell me new nav disc sets. Perhaps I have been spoiled by Porsche, which distributes them to me every year or so at no cost whatsoever. They just show up in the mailbox. Finest car -- and car company -- in the world.

Cheers, John

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'98 E300TD (W210) | Sold 6/09 with 205k and counting
'04 VW Touareg V10TDI