I just purchased a 2005 530i and I love it! I got out of a gas-guzzling Chrysler Aspen(Dodge Durango) and I couldn't be happier. However, I'd like a little more volume and bass from my speakers, anyone have any good advice?
I would call Crutchfield and BavAuto and ask for their recommendations if you don't want to go to a high-end audio shop (although the latter would be my first choice)