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Originally Posted by Crax
At my knowledge, there are just two different navigation systems using DVD: The "High" (older) and the "Professional" (current). As it seem it is the Professional version on E90, it should be the same. Just check on your existing navigation DVD in your E90 to check if it is written "High" or "Professional".
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All US models only have Professional sat nav. I, for one, would like the cheaper Business sat nav which just gives you arrows and no map. But it'd just confuse the hell outta Americans, who are used to having a sat nav with full color maps.