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    Thread: RCA to Panel Mount 1/8" Stereo. Need help

    1. Geriatric Member
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      03-07-2009 06:30 PM #1
      Updated to remove the trial and error portions

      I bought this from Radioshack for $3.
      Then I took one of these:

      cut the headphone jack off and tried wiring it together
      Now here's the schematic on the back of the bag

      We know that the ring/red is right channel and the tip/white is left channel
      Now, inside the sheathing, there's only 4 wires:
      red + copper
      white + copper
      Inside the cable when we stripped it, there's a layer of of copper, then another covered layer (red or white sheath)
      What we did was join the copper layers as one cable and solder it together
      then we took the red wire and the white wire and connected them up as so:

      Pins 3 and 4 are not used.


      Modified by Chapel at 8:04 PM 3-8-2009

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    3. Member Pat @ Pitt Soundworks's Avatar
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      03-07-2009 06:41 PM #2
      You should only need three of the plugs on the jack, ground and left and right. Easiest way to tell which ones to use for what would be to hook the stereo to rca cable into the jack, fire up the digital multimeter, and start poking around what pins go where on rca ends.
      Wait, you're tying to run the speakers by bypassing the head unit?
      IIRC, 1 is left, 5 is ground, and 2 is right
      edit: wow fingers aren't working at all


      Modified by Pat @ Pitt Soundworks at 6:45 PM 3-7-2009

    4. Geriatric Member
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      03-07-2009 06:47 PM #3
      no no.
      My radio has an RCA Aux In on the back.
      I have the RCAs plugged in, but I wanted them terminated into a panel mount headphone jack. (which is mounted to one of the dummy panels in my Audi)
      So, which wires should go where if I've got 4 wires and 5 connectors?
      are the copper sheathing JUST ground and the white and red inner wires the actual speaker?

    5. Member Pat @ Pitt Soundworks's Avatar
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      03-07-2009 07:39 PM #4
      Quote, originally posted by Chapel »
      should I have bought this instead? looks like this is the 3 wire solution...

      You don't have to use all of the plugs. You should be fully operational using only three (left, right, common ground)
      Quote, originally posted by Chapel »
      So, which wires should go where if I've got 4 wires and 5 connectors?
      are the copper sheathing JUST ground and the white and red inner wires the actual speaker?

      Correct. You can take two grounds (I assume on the RCA side?) to the same ground pin on the jack.

    6. Geriatric Member
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      03-07-2009 10:08 PM #5
      Ok, so:

      1 is ground
      2 touches tip (left ch)
      5 touches ring (right ch)
      So, if I understand correctly:
      1 is at the collar/ground
      2 is at the white/tip
      5 is at the red/ring
      3-4 unused
      hopefully I can unsolder it and put it back together tomorrow
      makes sense now.


      Modified by Chapel at 8:02 PM 3-8-2009

    7. Member Pat @ Pitt Soundworks's Avatar
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      03-07-2009 11:08 PM #6
      This is from memory, so you WILL want to check with a multimeter.
      1 should be right.
      5 should be ground
      2 should be left
      Also from memory:
      shield is ground
      red is right
      white is left

      pins 3 and 4 from that diagram look to be duplicates of 2 and 5, respectively.

      I cannot stress enough that you need a digital multimeter (or a AA battery and LED works too) to test which wires go where.

    8. Geriatric Member
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      03-07-2009 11:17 PM #7
      how exactly do I test that with a multimeter though?
      that's what I don't understand.
      I never did pass Electrical Engineering in College
      here's how the panel mount is set up right now


    9. Member Pat @ Pitt Soundworks's Avatar
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      03-07-2009 11:57 PM #8
      There ya' go

    10. Geriatric Member
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      03-08-2009 05:24 PM #9
      Ok, so here's the final result


      works beautifully

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