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Thread: Dimming Head Unit

  1. #1
    Regular Member Damian's Avatar
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    Default Dimming Head Unit

    I have a Pioneer DEH70BT as a few others do on here, and lik eother headunits I believe there is a function i nthe menu to auto dim when you turn on the car headlights. A bit like the display screen does.

    However mine doesn't, is the case across the board?, just the Pioneer?, or just me?

    Cheers

  2. #2
    Regular Member Rikkiola's Avatar
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    I found a setting for this but havent actually tried it... I'll have a look at mine tonight and let you know

    Managed to get the permanent live feed sorted out now ... so am happy with mine now.... (think i may get the pioneer steering control adaptor too)

  3. #3
    Regular Member Damian's Avatar
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    Quote Originally Posted by Rikkiola
    I found a setting for this but havent actually tried it... I'll have a look at mine tonight and let you know

    Managed to get the permanent live feed sorted out now ... so am happy with mine now.... (think i may get the pioneer steering control adaptor too)
    Cheers if you could. So what did you do for your permanent feed then. An idiots guide for me would be great

    Cheers

  4. #4
    Regular Member Rikkiola's Avatar
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    Hmm was going to try and explain but like you say 'idiots guide' will be easier so I will take some pics to show u the connection I changed... am busy tonight but will try and sort it out for you tomorrow

    but to summarise until then... I think that the wire in question comes away from the head unit.... there should be a red one which connects via the cigaretter lighter and then a yellow one which goes to marries with the point in the vauxhall harness which goes to the battery.

    Both the red and yellow leads split in the middle on the way from the back of the head unit to the ISO Block. Also, coming out from the head unit (or the ISO block, I can't remember) there should be an additional yellow lead that is blanked off half way and is probably not being used at the moment by your set up.

    You need to unblank this half lead, unplug the red lead half way down then marry the now-unblanked yellow lead to the now-unplugged red lead. This should give you a permanent feed to the head unit from the battery.

    You should be left with half a red lead to blank off using the little plastic plug that you just took out the blanked yellow lead.

    That may sound confusing but is actually really simple.... i'm sure a pic will help !!

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    Mine doesn't work either. I think that where they tell you to wire it, i.e. the ciggy lighter glow ring, is permanently on and so doesn't activate the dimming function. Just a theory though, as I don't actually have a lighter.

  6. #6
    Regular Member vectra 2.0 t's Avatar
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    ive got a kenwood and mine dosn't dim the display either

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    Regular Member Rikkiola's Avatar
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    Here's a nice crude diagram to try and explain

    Basically from memory, I think you need to unplug 1 and 2 and connect 5 to 2. 5 should have a little plastic bung in which you can remove and put in to the end of 1 which should be left spare afterwards




    Hope that helps

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    [Ex]Admin Duncan's Avatar
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    Quote Originally Posted by simonali
    Mine doesn't work either. I think that where they tell you to wire it, i.e. the ciggy lighter glow ring, is permanently on and so doesn't activate the dimming function. Just a theory though, as I don't actually have a lighter.
    Ciggy lighter glow ring is switched to the lights. That's what I used to wire up to my boost gauge.

    HTH

    D

  9. #9
    Ex-Staff Full Member Ian T's Avatar
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    My Sony head unit disply dims when I turn on lights

  10. #10
    Regular Member Rikkiola's Avatar
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    F***in hell.... i just wrote out a huge explanation for this and pressed my back button by mistake and lost it all.

    Here is a pic showing what to do Damian...



    Coming out the back of the ISO block should be a yellow lead and a red lead which should be joined to a yellow and red lead respectively with bullet connectors that then lead in to the head unit.

    There should be a spare yellow lead coming out of the ISO block. You need to take the blanking plug out and disconnec the red lead half way at the bullet connection (this should be labelled ACC near the head unit)

    Now plug this extra yellow lead from the ISO block in to the red lead (ACC) from the head unit. Put the blanking plug in to the now redundant red lead from the ISO block.

    Job done... let me know how u get on


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