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      02-26-2013, 07:32 PM   #5
cdgatti
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Drives: e90 328i
Join Date: May 2011
Location: KY

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I too have the 328 that came with the hifi. Yes the stock hifi in these cars is terrible for any car, let alone a $40-50K car. I think a very good budget minded upgrade would be the xd600/6 like you are thinking about. I would replace the front door mids and tweets but keep the stock rear deck and the stock underseat woofers. For the front doors; morels, focals or rainbows.