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  1. Add usb CD changer adapter to Prof Navigation

    General E46 Forum
    Hi I have a 2003 E46 325i Cabrio with what I think is Prof Navigation. It has the tilt out screen with the minidisc behind it. I already have an aux in fitted (connected to the back of the radio) but I'd like to replace the CD changer with a unit offering USB connection. I've come across a...
  2. Factory Professional Stereo playing up...

    Mobile Electronics Forum
    I have this installed from factory and it has a very peculiar and particular but INCREDIBLY frustrating glitch. At exactly a certain point when raising the volume, almost all the bass cuts out. Whether I use the volume knob or the steering wheel control, I literally go one notch higher and the...
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