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Audio wires

Discussion in 'Defender 90 / 110 / 130' started by Ttwo, Feb 3, 2018.

  1. Ttwo

    Ttwo Active Member

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    does anyone know wtf is going on here! I plugged my new CD player in as it already has a plug ( on the Land Rover ) and nothing.....what's the power ign ground...in not any good with wiring diagrams
     

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  2. discool

    discool Well-Known Member

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    A mess to put it mildly, power supply brown + - black usually, your looking for a switched and permanent supply plus one for illuminating the display and of course ground... time to get your multimeter out and switched on. :)
     
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  3. Ttwo

    Ttwo Active Member

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    So brown is + and black is the - so what’s the white? Aaaaand I don’t own one as I don’t know how to use one lol think I might have to learn
     
  4. discool

    discool Well-Known Member

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    Who knows what the white wire is for as it doesn't loook as it's still as it left the factory, so test and don't guess, maybe better to get someone who can, as it's very straight forward job and should be all done and wires tidied up and put away neatly and the unit fitted in 30 to 60 minutes including the tea breaks. :)
     
  5. Gmacz

    Gmacz Well-Known Member

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    White wire has a sticker on it with writing, what does it say.
     
  6. Ttwo

    Ttwo Active Member

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    It says resist 17 na
     
  7. Gmacz

    Gmacz Well-Known Member

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    The other sticker further back on pic 2.
     
  8. Ttwo

    Ttwo Active Member

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    Ye that’s what it says....the little with tag on the white wire
     
  9. mick the builder

    mick the builder Well-Known Member

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    Get a probe tester with a light in it. Just poke through insulation and clip other end to earth. When it lights up, you've found a live. Simples
     
  10. Gmacz

    Gmacz Well-Known Member

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    White wire is live because it joins onto the brown wire further up, it must be a feed for something else. As you are using the plug, it will just be a case of swapping the blue bullet connectors around. You just need to find a wiring diagram for the radio or work it out from the colours as best you can.
     
  11. Ttwo

    Ttwo Active Member

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    Ye iv got the book out for my CD player to look...iv got a meter now too so I’ll try work out what’s going on....one thing I was wondering I can either run a new wire from fuse box or if I just tap into the wires that are already there will my CD player then run off there circuit..so it will be off there fuse?
     
  12. Discokids

    Discokids Well-Known Member

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    That's a mess. Remove everything back to just leaving those grey female Sockets and start again.
    Simply put;
    Brown = permanent unfused live. This cable will have a capacity of well over 20a as long as the battery is charged and connected so be careful with it.
    Black = earth.
    White = ignition switched live, unfused. This will only be live when the ignition is on, and given its size will carry over 20a.
    None of the three wires are fused so your stereo needs to have its own fuse which most do but make sure.
    Your stereo should have;
    +
    Earth
    Illumination
    Memory
    And probably aerial out, sub out (these Switch these things on when your stereo turns on)
    Standard landy wiring that you have doesn't have the illumination function, mine didn't even have a permanent live for the memory feature.
     
  13. Oldseadog

    Oldseadog Well-Known Member

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    One will be a direct feed and another will be the ignition feed.
    One goes to the Aux position on the switch and if you don't have one it needs to be connected in parallel with the ignition feed.
     
  14. Ttwo

    Ttwo Active Member

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    6CCD1FEE-7227-4DDE-A037-C0D9D00F254E.png So I’m guessing cd red to LR white.... cd yellow to LR brown and black to black...what about cd dimmer?? I have no clue when it comes to this kinda thing I’m just learning as I go
     
  15. Discokids

    Discokids Well-Known Member

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    Your diagram certainly suggests that but remember that both your brown and white are UNFUSED. I would fit inline fuses if I were doing it this way, on my own wiring loom project I've accounted for this and run the required cables. I've also run some Spares so that I can make use of any dimmer function dependant on what head unit I buy / find.
    Dimmer will be just that, when you turn your light lights on it will tell the head unit to dim its illumination because it's dark outside. I wouldn't bother with that personally because I don't know what you would feed it from or the spec required but others might.
     
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  16. Gmacz

    Gmacz Well-Known Member

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    It looks like yellow is power or brown and black is black.
    It looked like white joined the brown in the blue bullet but I think it is behind it so not joined.
    Test the white for power on and off with the ignition and join it to the red.
    So, you are correct I think.
    If white has no power then connect brown to red also to get CD working and then rewire as required.
    Dimmer will require another wire from the dash and you only have three.
     
    Last edited: Feb 4, 2018
  17. Ttwo

    Ttwo Active Member

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    Ye I’ll forget the dimmer tbh....I’ll give it ago sat as it’s the only time I get with work kids and gym taking priority lol thanks guys I’ll let you know when I get chance
     
  18. Ttwo

    Ttwo Active Member

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    All sorted.... I pulled all the wires out and just ran 3 new ones from the LR directly to the CD player didn’t even use the connection box...just added 2 inline fuses but I did use the connection box for the speakers....20min start stop easy done.......................when you know what the wires are...thanks guys
     
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