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  • 2 aux devices, 1 aux input

    hey guys

    i have an xbox in my car that plays music through the auxillary inputs on my panasonic head unit. Yesterday i got a sony nehd5 20gb mp3 player for excercise and work but i also would like to use it in the car.

    I know the easy way is an fm transmitter, but fm is ****ty. Therefore i need to take 2 aux sets and get them into one. I know there are lots of those little selector boxes, but that may look kinda ghetto, so finally my question comes to this:
    is there any possible circuit (my electronics raent that great) that could let me choose between which device gets played.

    im open to any designs, i have a few of my own, but yeah
    help

    cheers boys
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    Next Step: Making Enclosure, Hard Wiring PSU

    Thinkpad 1Ghz P3
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  • #2
    there is a simple mixing circuit you can make with a few resistors. They'll just combine the signals, so oyu cna do both at once. I forget the schematic and values though.

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    • #3
      http://www.epanorama.net/circuits/linesum.html

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      • #4
        I don't think he wants to mix them, just select one to play through the aux at a time.

        You can run the signals to a DPST switch and select them that way.
        2007 Honda Fit Sport 1.5L SOHC-VTEC

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        • #5
          Originally posted by binary.h4x
          I don't think he wants to mix them, just select one to play through the aux at a time.

          You can run the signals to a DPST switch and select them that way.
          Wouldn't you want a DPDT switch.
          Attached Files
          1.6GHz HP e-PC, 768MB RAM, 120GB WD HDD, Slim DVD-ROM, Onboard sound & video, 7" Lilliput, USB GPS Mouse, Audiovox FM Modulator, Vector 400 Watt Power Inverter, Windows XP Pro SP2, iGuidance 2, 15" Samsung LCD for the rear *Carputer not installed*

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          • #6
            yeah, my bad, twas thinkin in mono :P
            2007 Honda Fit Sport 1.5L SOHC-VTEC

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            • #7
              oh okay,

              so i would need 2 of these dpdt switches? one for each channel (judging by that diagram)

              thx guys
              Progress 50%
              Next Step: Making Enclosure, Hard Wiring PSU

              Thinkpad 1Ghz P3
              256MB RAM
              Lilliput Motorised
              80GB 3.5"

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              • #8
                You should be able to just use one if you connect all the negatives together (grounds). Like this. (Someone correct me if I'm wrong but I believe that you can use common grounds)
                Attached Files
                1.6GHz HP e-PC, 768MB RAM, 120GB WD HDD, Slim DVD-ROM, Onboard sound & video, 7" Lilliput, USB GPS Mouse, Audiovox FM Modulator, Vector 400 Watt Power Inverter, Windows XP Pro SP2, iGuidance 2, 15" Samsung LCD for the rear *Carputer not installed*

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                • #9
                  http://www.davidnavone.com/detail.asp?PRODUCT_ID=N-806
                  Fabricator

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