EM TuningChris Nott
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  1. #1
    synthdood's Avatar
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    Aux in on Concert radio for PDA/MP3 player

    I have just discovered that my new PDA (Fujitsu Siemens PocketLoox 720) has a line out on the cradle plug. This is opening up some great possibilities to use it as an in-car MP3 player as well as for SatNav [img]/ubbthreads/images/graemlins/laugh.gif[/img].

    I'm now looking into getting an active Brodit cradle for the PDA and modify the plug/cable myself so that it also carries the audio signal. The only problem is getting the signal into the Audi radio. I know that the CD changer inputs can be used for this and I'm sure that finding the line-in pins on the radio is simple enough, but what do I need to do to fool the Concert radio/cd into thinking there is a CD changer installed? The usual boxes that you can buy to create a aux input on Audi radios are too expensive to my taste. I'm quite good with electronics, so unless it is going to require programmable microcontrollers, I'm sure I can make something myself. All I need to know is which pin requires what kind of signal so that the radio thinks a CD changer is connected.

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  3. #2
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    Re: Aux in on Concert radio for PDA/MP3 player

    It needs dummy data on the Data In line on the back of the HU, the pin outs are detailed on the top of the HU

  4. #3
    imported_G4JSG
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    Re: Aux in on Concert radio for PDA/MP3 player

    [ QUOTE ]
    It needs dummy data on the Data In line on the back of the HU, the pin outs are detailed on the top of the HU

    [/ QUOTE ]

    Could you please explain what to do as I am looking for this very same solution. My concert radio/CD also has the glove box 6 disk changer which I will be removing if I can get the MP3 player connection working, so I could use the wiring harness for the solution I gues????

    Any help will be really appreciated.

    Thanks
    John

  5. #4
    technics100's Avatar
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    Re: Aux in on Concert radio for PDA/MP3 player

    This might help

    Aux input

    or this

    Aux input 2

 

 

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