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Thread: 2 aux devices, 1 aux input

  1. #1
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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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  2. #2
    Maximum Bitrate KyleYankan's Avatar
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    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.

  3. #3
    Maximum Bitrate KyleYankan's Avatar
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  4. #4
    Maximum Bitrate binary.h4x's Avatar
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    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

  5. #5
    Maximum Bitrate dodgetimes2's Avatar
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    Quote 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.
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  6. #6
    Maximum Bitrate binary.h4x's Avatar
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    yeah, my bad, twas thinkin in mono :P
    2007 Honda Fit Sport 1.5L SOHC-VTEC

  7. #7
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    oh okay,

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

    thx guys
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  8. #8
    Maximum Bitrate dodgetimes2's Avatar
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    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)
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    Maximum Bitrate Altimat's Avatar
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