I just recently purchased a 2004 E500 wagon with NAV. I can't believe how poorly it works. Large towns, like Freeport, ME, that don't even appear on the list or map. I have the original 2004 dvd disc. Does anyone know if the updates actually include much updating? They are rediculously expensive. Any deals?
Also.... anyone know where the gps antenna is located, hatch spoiler?