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Posted on Jan 08, 2009

Yellow Wire has no power

The yellow wire is the memory wire and it has no power. I hooked the red and yellow wire to the red wire from car and my stereo works. But in order to save my settings when I turn off the car I need the yellow wire. Does anyone know what fuse makes the yellow wire active.

  • lieberadam Jan 08, 2009

    My stock Radio was not installed when I bought the car. I had a friend take out my old stereo so that he could have it. The yellow wire was hooked up to the yellow wire on aftermarket stereo before. I'm not sure if a fuse is broken or a wire got pulled out. There is only one live wire and that is when the car is on. The yellow wire does nothing and I have no free wires except for the sub wires. I was told there was a fuse that is should be used for the yellow wire but im not sure which. If I do run a new wire, how do i get it from my battery to my radio.

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  • Posted on Jan 08, 2009
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Your stock radio should have had a wire that does this. It may not be yellow so look up the wiring diagrams for your car. If you can't find it by doing that, then look up a diagram of your use box. Sometimes there's a diagram on the back of the fuse panel cover or somewhere around there that tells you what fuses are from what. You can then run a new wire if you have to.

  • Anonymous Jan 08, 2009

    Ok... The good news is that you do have the ignition switched wire
    working properly. That's the complicated one. You should first try to
    run a new wire from the fuse box. Look toward the back of the box and
    figure out which fuse is for the radio. You might even see the other
    end of the missing yellow wire if it got cut off or broken or
    something. Then you can use that. If not, you'll have to run another
    wire directly from the + terminal of the battery itself. You will have to find a place to run it through your firewall (look for the spot where all the other wires go from the engine bay into the cabin) and use that. And you should use an inline fuse on this wire if your deck doesn't have a fuse built in.



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Related Questions:

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1answer

The diagram is not right my CD player will not turn on unless the red and yellow hooks up too the green wire

The Red and Yellow must both provide power.
Red to ACC ignition and the yellow to permanent battery power to retain station memory.
So look for 2 power sources.
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Where do you connect the memory wire on a jvc kd g110 car stero.....what color is the memory wire ?? what does hook red wire to acc fuse mean??? what wire does the red wire on the radio connect to on...

The yellow wire is most likely the memory wire as it needs to be connected to a constant 12 volt source.

"Hook red wire to to acc fuse" means you need to hook into the fuse block under an Accessory Fuse. (ie: something that can't be turned on unless the car is running or the key is in the "Accessory" position)

The red wire is explained above. It does not connect to the harness.

Just remember that the yellow wire needs to be hooked to a constant 12 volts and the red needs to be hooked to a circuit that is only active when the car is running or switched to the "ACC" position.
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My memory wire is yellow & my power wir is red. I have them all hooked together so that the stereo will turn on. My kenwood cd player will not hold memory. Can you help??

The red wire goes to the ignition 12 volt source, and the yellow to the battery 12 volt source. The yellow wire must remain hot with the key out to retain memory.
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I am hooking up the stereo and I know I have power coming to the wires cause the black and yellow ones spark but when I hook them to the stereo I don't get any power

The yellow wire is the constant wire, you need to find the battery + wire which will be red and hooked that to your deck, the red wire is the main 12v wire and the yellow wire is there just to use a little bit of power to keep the memory i yur deck, i.e. the time, cd position stuff like that
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I have an after market pioneer car stereo and not sure how to hook the red,yellow and blue with the stripe, to the wire harness with orange lummination and orange dimmer negative,yellow batt. and blue i...

red is usually ignition switched power from the fuse box and the yellow is continuous power to the deck. blue with the stripe is usually a voltage output from the deck to control the on/off of an external amplifier. If you hook the deck up and the memory stations do not save after vehicle on/off cycle of the ignition swap the yellow and the red wire and they should work. One is power all the time to allow the deck to store memory and the other is the main power to the unit.
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Hi-changed over my car stereo out of my hyundai coupe 04 today but now the new stereo will not switch on automatically when power to unit-resulting in cd etc starting from begining again-i removed a...

you more than likely have the red/yellow wire (coming out from the back of the radio) reversed. the orange wire is usually for the dimmer feature and is not necessary to hook up. The red wire needs to be hooked to an accessory wire (i.e. send power when you turn the car on and goes to ground when the cars off) and the yellow wires needs a constant power source (i.e. always on from the battery) the yellow wire lets the radio retain memory.
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Stereo help

Make sure the red wire on the unit is hooked up to power. The blue antenna wire is hooked up (or to the factory amplifier) and the yellow wire on the radio is hooked up to a key on power supply. If it works and you lose the memory when you shut the key off, switch the red and yellow wire power supplies.
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I install a radio it dont keep a memory

Pull the radio back out. I bet you hooked up both power wires (red and orange or yellow) to the ignition on hot wire. Orange or yellow depending on the radio usualy goes to the ignition on hot wire and red to a constant hot wire. Check the radio wiring diagram or list. One of the power wires has to go to a full time power source. check the wires with a circuit tester with the key off till you find the constant hot wire (battery power)
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What is the yellow red red wire on the deh-p6700mp harness?

yellow is hooked to a constant 12 volt even with key off, it is called KEEP ALIVE MEMORY POWER, the red wire supplies 12 volts with the key on or in accessory.
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Turns on but nothing displays.

it sound like the memory wire is hook up wrong, check the yellow wire first then the red wire if still the same problem, connect the red and the yellow wire together to see if it come on it should come on you might have to run a hot wire from the battery in the dash then hook the yellow wire to it so your memory stays on
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