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Replacing Concert for Sony HU. Help needed.

Discussion in 'In-Car Entertainment' started by steslatt, Aug 16, 2011.

  1. steslatt

    steslatt Member

    Jan 15, 2009
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    I have an Audi A4 S-line 2005 with single DIN Concert HU. I want to replace it with a Sony bluetooth HU. Will I need a harness adapter? If so which one? Anything else I will need? I assume I will need a fascia?
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  3. kev1000

    kev1000 Member

    Jun 11, 2011
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    You'll need a fascia.
    Not sure about harness.
    A guy near me, wired mine and didn't use one.
    He ran a wire form the fusebox to power it only when the ignition is on.
    Then he cut and joined some wires at the back of the stereo so the rear speakers would work as well as the front ones.
    Took him about 20 minutes.
    You'll also need an aerial adaptor.
    You'll find one on eBay for 2 or 3 quid.
    #2 kev1000, Aug 17, 2011
    Last edited: Aug 17, 2011
  4. alyrian

    alyrian New Member
    VCDS Map User

    Aug 3, 2011
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    I followed this to get mine up and running
    Audi Amplified Harness | Nexxia UKI used a PC9-401 for my A3 SE 2001, non-bose, my rear speakers works fine. I didn't need any aerial adapter as it came with my HU.
    Only need to run the wire from the fusebox to power it only when ignition is on, using it shorting the red/yellow wires from the HU but I need to switch the HU off/on manually or it'll drain the battery.

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