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I tried to install a radio but im not getting any power to the stereo when I turn the car on to acc.

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Ok did you hook up red to ignition and yellow to constant power?

check all the fuses car and back of head unit

if worse comes to it connect red and yellow to geather and send it straight to the positive on the battery with a fuse but u will have to turn the radio on and off by your self not the ignition

Posted on Jul 04, 2008

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How do I hook up my subwoofer and amp to my ford f150?

to hook up the amp. drill a hole in the firewall, run an 8 or greater gauge cable (greater, depending on the wattage of the subwoofer amplifier) from the battery positive lead, thru the firewall, to the amp power +, and be sure to place an in line fuse within the engine compartment, within a foot of the battery. hook the speaker up, and then run the amplifier negative lead to a bare metal part of the cars chasss, and, finally, hook the amplifier remote power lead to the acc circuit of the interior fusebox (i usually just take the acc fuse out, stick the wire in the acc fuse receptacle, then re-insert the fuse to complete the circuit).

to run the radio signal to the amp, you can use a speaker to line level converter (if stock stereo). just splice them into the stock stereo speaker leads

Apr 15, 2016 | Car Audio & Video

1 Answer

Temporary wired a clarion px 3310 for car installation, all was ok so turned off @ the head-unit and proceeded to install stereo with permanent wiring. Now...stereo installed, switch power on...nothing,try...

Here is the breakdown of the steps that you should take to pinpoint the issue.
  1. The first thing you should do is check the fuse for the radio. then you want to check the ground wire. Most people would think that if its not powering up then it must be the power wire. Not always the case.
  2. After you ensure that there is a solid ground between the chassis and the stereo you are going to want to check your Battery positive wire (power). Best way to do this is to use a test light. one end is clipped to a ground and the other end is a needle like probe, remove the harness from the radio and find where the power wire is fed into on the harness and probe it and see if you get the bulb to light.
  3. If the bulb does not light up, the next step is would be to check over the wires and see if there are any bare wires or any shorts. If there are wire connections that are made by electrical tape, take them apart and use actual wire connectors.
  4. Have the ignition in ACC on while probing.
  5. The last thing I could tell you and not stress enough. Be very careful when you are in there, people just don't understand just how tied into a vehicles electrical system a stereo is.
  6. Good Luck.

Sep 19, 2011 | Clarion Car Audio & Video

1 Answer

Have a 1996 Toyota Camery. Installed a KDG140 JVC stereo/CD player but the stereo won't work. CD player works great.

If "stereo won't work" refers to you not being able to get radio stations; try your antenna connection behind the radio. The vehicle may also have a power antenna connection(blue wire at the stereo).

Jul 28, 2011 | Car Audio & Video

1 Answer

Im trying to install a new radio into 1997 Ford Expedition w/premium sound. However I cannot get any sound. I have the wriring harness.

Hello... I am sorry to hear you are having a problem I am assuming that you are using a wire harness adapter to interface between your factory harness and the aftermarket radios harness. If the aftermarket stereo has a blue/white wire, you need to connect it to the blue and the blue/white wires in the adapter harness. This will turn on the amplifiers. If your aftermarket stereo only has a blue wire, then use it as the connection with the blue and blue/white on your aftermarket harness adapter. Hope this helps. If you need any further assistance, let me know!

20 year car audio/video installer
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Mar 19, 2011 | Car Audio & Video

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My problem is about wiring, there so many color wire at the back red acc,blue autoantenna,how about the 2yellow,blkyellow,pink,green,whiteviolet and 3blk i hope you help me about this preblem thank you.

Ok without you giving any detail as to what kind of car and the make and model or year im just going to try to give a general explanation.

Common wiring colors and what they do -
Black- is always the ground wire. Always. This must either be connected to another ground wire or connected to metal, for the device to work.

Red - Red is always the power cord, always. This must be connected either to another red power cord or straight to the vehicle battery.

Im not sure what your referring too with "acc"

blue - antenna, this sends a signal telling the radio to shut off when the car shuts off, otherwise the radio would stay on all the time.

Yellow/pink/green/violet - are probably all specific speakers inside your vehicle and respond according to colors on the back of whatever you are trying to install.

**special note, there are tons and tons of different combination's of the colors and wires throughout the various automobiles in the world, it is easiest to check your manufactures website or handbook or manual to find out your vehicles wiring guides and colors.

Hope this helped.

Feb 07, 2011 | Car Audio & Video

1 Answer

I am trying to put a sterio in a mitsubishi varada 98 model and we cant wire it proply

I guess the problem is trying to figure out which one is the power, accessories, ground, speakers, etc.

1. Get a DC tester, the ones which has a bulb on the end. Or a multimeter.
2. Make sure you connect the clamp to ground, usually the door hinges is a good option.
3. Turn everything off, take the keys off.
4. Start testing each of the cables. The one that lights up with everything off is the power.
5. Now tape the power so you don't make contact with metal.
6. Turn the car key to ACC position.
7. Start testing with the DC tester. The one that lights up now is the ACC.
8. Now the negative is usually black.
9. Now you can run new speakers cables from your new radio.

If you are installing an amp, you will just have to run the remote from your new radio to the amp to turn it ON.

The AMP installation is different from the radio.

Hope it helps.

God Bless You!!

Feb 05, 2011 | Car Audio & Video

1 Answer

I recently wired a eonon e1091 into a 2007 silverado classic. i used a scosche wiring harness that allows me to keep my chimes. everything works fine but when i turn the truck off, theres still power...

It's called delayed acc. power. It should shut off as soon as you open the door. Unless the red stereo wire is hooked up to constant power. You may need to check with a test light.

Oct 31, 2010 | Car Audio & Video

1 Answer

Bmw 318i se auto clock reset problem?

a little more information would be nice but im going to make a guess
you installed a new deck in the car, now every time you turn the car off the clock resets?
if thats correct.. the deck will have 2 power inputs, one that turns the radio off when it does not have a power signal, the other that should have a constant voltage to maintain the stereo memory, now if I'm correct you have either the 2 wired opposite to how they should be or both wired to something like the ignition wire, and it is acting like the battery has been removed every time you turn off the car, which means you need to check your stereo wiring.
if this is incorrect please leave some more info telling everyone when the clock is automatically reseting.

Aug 06, 2010 | Car Audio & Video

1 Answer

I'm trying to install my stereo and i dont know what wire is the constant power or acc power in my 93 cavalier

Hello djcarter_19,

Here is a link to the '93 Cavalier radio color code. It appears that the 12V constant is "orange" and the 12V switched (accessory) is "yellow".

Hope this helps.

May 01, 2009 | Car Audio & Video

1 Answer

While testing before final installation of the JVC KD-G240 CD Player, the only power I can get is to eject a disc and temporarily display the time. I cannot turn the unit on. After pressing the reset...

This is an indication that the "ACC" line is not getting the 12 volts to turn on the radio. Check the fuses, it may have blown one. The "ACC" is the red wire that comes off the back of the radio harness. It needs a 12 volt supply when the key is turned on for the radio to work properly. When this is missing, you will have the conditions you have described. The yellow wire is for a constant 12 volts even when the radio is off and the car is off. Since you do get the eject and the clock display you have a good ground, so that is not an issue. You just need to find out why you do not have the 12 volts on the red wire when the key is turned on in the car.

Dec 10, 2008 | JVC Car Audio & Video

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