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z4 sound system

  1. E89 Z4 (2009 - current)
    Hello all, For starters, this is my first-ever post, so I apologize if this subject has been handled elsewhere. I tried to find a thread on the issue but couldn't. So, here goes ...I own an '05 Z4 3.0 with the premium sound package and, though I've been happy (but not thrilled) with the sound...