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Old 03-08-2010, 08:36 AM
chasz17 chasz17 is offline
Officially Welcomed to the 'Fest
Location: Franklin, MA
 
Join Date: May 2007
Posts: 479
Mein Auto: x5 4.4i
I do not believe you'll be able to play MP3 encoded discs with the proper update for your 2004. I just had to have my car (2005 645Cic) reprogrammed due to a replacement of one of my headlights. The entire programming had to be done and took four hours. I didn't notice any changes at all. Again, do not mess with the programming unless you have to as you could introduce problems and unintended consequences.
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