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Thread: Where to wire my aftermarket gauge for lighting?

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    Default Where to wire my aftermarket gauge for lighting?

    I just finished installing a analog oil pressure gauge in the supra, but i want my gauge light to come on whenn i flick all the other dash lights/headlights on.

    where EXACTLY do i have to splice into to get that to happen?

    and the gauge just has a regular light bulb with two wires, one that says its for ground and the other for power..wouldnt i need a pos/neg flow of charge?

    Oh and yea, i put the gauge inside the gauge cluster.

  2. #2
    Grumpy Old Man
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    Default Re: Where to wire my aftermarket gauge for lighting?

    I'd wire it into the existing dash lights so it dims.

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    Default Re: Where to wire my aftermarket gauge for lighting?

    Quote Originally Posted by IJ. View Post
    I'd wire it into the existing dash lights so it dims.
    yea i want to but how? the back of the gauges has that green motherboard thing and I wouldn't know how to try to get into that. I need like a specific point/pinon a connector/ or wire.

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    Grumpy Old Man
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    Default Re: Where to wire my aftermarket gauge for lighting?

    Follow the Trace back from the Bulb holder, from memory it'll be a White wire with Green trace for power then hook the ground to the Brown (again from memory)

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    Default Re: Where to wire my aftermarket gauge for lighting?

    Quote Originally Posted by IJ. View Post
    Follow the Trace back from the Bulb holder, from memory it'll be a White wire with Green trace for power then hook the ground to the Brown (again from memory)
    awesome thank you. just to clarify, when you said to hook the ground to the brown, are you talking about the brown contact part of the flexible motherboard where the old bulb would fit into?

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    Grumpy Old Man
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    Default Re: Where to wire my aftermarket gauge for lighting?

    One side of the bulb holder will go back to a White/Green, the other to a Brown.
    (Might be Green/White) make sure to check it.

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    Default Re: Where to wire my aftermarket gauge for lighting?

    okay cool. sounds good thanks again!

  8. #8
    Grumpy Old Man
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    Default Re: Where to wire my aftermarket gauge for lighting?

    Welcome!

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    Grumpy Old Man
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    Default Re: Where to wire my aftermarket gauge for lighting?

    Just checked it's White/Green and Green..

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    Ij.......you're the best!

    Sent from my LS670 using Tapatalk 2

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