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Replace headunit Audi A4 1998

Isaacnewton Jan 9, 2019

  1. Isaacnewton

    Isaacnewton Registered User

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    Hey, I've got an Audi A4 B5 1998 1,9 Tdi with an original bose sound system (amplified). I've bought a new headunit to replace the original one (Audi Concert) and a adapter to convert the cables so it works with the Bose soundsystem.

    After I've installed it the speakers make a pop sound when i turn it off and on, and there is constantly buzzing in the background. I believe it has something to do with the grounding, since the adapter required me to place a new grounding wire, if it's not the adapter itself that is the issue.
     

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