Yes, it is probably worth it-- get a 2005 or newer disk. The reason is that Navteq dramatically increased the street level detail on the disks around the 2004/2005 timeframe. Navteq completed a major map data project and released street-level data for most of the country. Prior to 2005, they had detail coverage of major cities, but coverage was pretty spotty in more rural areas.
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2000 E38 750iL Highline Edition, Upgraded with the lastest 2006 X5 Electronics
MKIV Navigation, 16:9 Display, Bluetooth, TV/Video with Backup Camera, Sirius, and Aux Input
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