No. The Sony's can take a beating but not like the factory deck at all. It's a tough market for waterproof decks, those are usually in the marine-class of decks. They'd have no reason to make a NAV marine deck. But things are changing quick, Android/iPhone integrated marine decks are coming up very fast and there's no reason they couldn't have the auto-GPS/map functionality available. Sony is pretty damn good with that, we can already side-load apps into their receivers.

Maybe wait a few months or until CES and see what comes out.