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      08-31-2012, 01:14 PM   #3

Drives: E90 M3
Join Date: Aug 2012
Location: Norwalk, CA

iTrader: (2)

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Exactly what The Tech said. Premium sound is definitely an upgrade over the regular sound option but it won't ever really be as good sounding as other aftermarket options. You can take the car to any reputable sound shop and see what they offer you. Or if you really think it's a problem with the car then bring it over to the dealer and see what your service adviser states.