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audi a6 quattro

  1. 2006 AUDI A6 3.2l Bass Fades Out

    C6 Forum
    Hello i have 2005 audi a6 quattro seems my base is fading in and out if i slam door it may come back on? Can it be loose wire or sticky residue? Do i need to change mmi board? All buttons light up radios work fine just the bass fades out any help?