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      03-12-2012, 10:45 AM   #12
wss4
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Drives: 2008 Z4 M Coupe
Join Date: Mar 2011
Location: San Diego

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Very interesting. My coupe sounded crappy with the subwoofers, so I took them out and it sounded significantly better. I also noticed a degradation in sound quality as my first battery neared the end of its life. It would all point towards a lack of power to the woofers in the coupes that causes the poor audio quality. Wonder if it would be worth looking into the e85 coding and replacing the subwoofers.
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