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Old 06-12-2009, 06:40 AM
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Brian-bmw Brian-bmw is offline
Join Date: Aug 2005
Location: Peachtee Corners, GA
Posts: 1,192
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First, list all of the part numbers here. That might provide some clues.

I can not tell from your description what the dealer thought was working or not working. The key to the whole thing is the MKIV nav computer. The rest is just a dumb input/output device. So, the problem could be a bad MKIV, an inproperly connected MKIV, or a MKIV coded for a monochrome nav versus a color nav.

Do you know anyone else with a nav system that you could test your MKIV in their car?
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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