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Am car radio not working

I have a Ford pick up truck that the am radio does not work with the engine running. It works on the accessory when the key is turned to it, but the minute you turn the key to the on position or with the engine running I get only static. The plug wires are good and the plugs as well. I can't find a noise suppressor in the system. what should I do? Antennna and cable are new. thanks Jim

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Re: am car radio not working

Make sure the radio is well grounded and you got to find a noise suppressor for the power lineof radio cheers

Posted on Jan 14, 2008

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2 Answers

What is a 12v acc.

1.Wire name: ACC wire
Color: Red
Describtion of ACC wire:
When you insert key into ignition switch and turn it to the left you are turning on the ACC circuit. It will allow you to operate radio, windows and other accesories, but it does not turn on fuel pump and other engine controls. It saves battery power for when you need to operate vehicle components without engine being on.
The ACC wire offers power/electricity only when you insert car key into ignition switch and turn it to the left
The ACC wire needs to be connected to car igniton
2.Wire name: 12V battery(+)
Color: Yellow
Describtion of 12V battery(+) wire:
The 12V permanent battery wire will always offer power/electricity when the vehicle is turned on or off
The 12v permanent battery wire needs to be connected to car battery.

Sep 25, 2016 | Car Audio Receivers

4 Answers

Vectra 2005 car radio goes on in during the night

The accessories wiring might be ccorrectly wired up, some times this causes the power to be running straight to the battery, turning the key all the way off cuts off accessories, therfore the power supply to the Stereo.

If you installed it yourself, make sure the power (usually Red) and Accessories (Yellow usually) are conected to the stereo, or have a professional take a look.

May 04, 2009 | iLO XM-MP3-CD Car Stereo

1 Answer

Radio will not work when i start engine but will when key is turned on

Does your car have a factory amp in it? If so then it needs a delay to the power wire because it is going into protection. Also could be the your holding the switch to long trying to start the car.


1 Answer

Chevy Radio Help (DUAL Radio)

You need to connect the red wire to a switched power source. The radio will not work of there is no power going to both the red and yellow wires. Yellow should be going to a constant power source (a source that is still hot when the key is off) as it controls the memory for the clock and preset stations. The red wire should go to a source that turns of when the key is off (accessory or ignition).

Apr 23, 2012 | Car Audio Receivers

1 Answer

Radio for my 2000 Ford Taurus won't work and I

Did you check all of your fuses. Your radio requires two power sources to work. One is constant to control the memory and the other is switched so the radio turns off with the key.

Mar 21, 2012 | JVC Car Audio Receivers

1 Answer

Can't save radio stations, have to tune the radio everytime I turn the car on. It doesnt work if you hold the numbers down. Can you help?

A common error wiring an after-market car stereo is where to connect the BATTERY and ACCESSORY wires. Under most conditions, these two wires do NOT get connected to the same point. The BATTERY wire connects to, well, the 12 volt positive terminal of the battery (or any 12 + volt source that is ALWAYS powered). This allows the radio clock to keep time and maintain the radio station presets when the vehicle is off / key is removed.

The ACCESSORY wire is connected to a point in the vehicle's electrical system that has 12 volts + whenever the ignition key is turned to the Run or Acessory position. When the key is NOT in these positions, the point should go from 12 volts + to 0. This change tells the radio to turn on or off, depending on the key position. The radio will power down when the key is removed, so you do not need to manually shut the radio off. This can save the battery if the radio volume was very low. The ONLY time you would accept both of these wires to be connected to the same point is when they are BOTH connected to the 12 volt + terminal of a battery (or wire that is always powered). If you wire this way, you will have to tune the power on and off each time you want to listen to the radio.

Check you manual for color or lable of these two wires, and place them as needed for the desired operation 1) Both on a constant 12 volt + source, or 2) BATT to a constant 12 volt + source and ACC to switched 12 volt + source.

I hope this helps. Please rate my reply with "4 thumbs up" if it did. Thanks!

Usually, purchase of a wiring harness designed specifically for your vehicle model and stereo solves this problem - as the required voltages and signals - including speakers - are made up and it is simply a "plug and play" operation. Newer cars will often require a "magic box" if you will, that uses some data signals in the car to turn on and off voltages for the stereo. Not installing the "magic box" will prevent much of the radio from working and can cause the loss of chimes, etc.

If your vehicle doesn't require the magic box

Aug 01, 2011 | Panasonic Car radio CD CQ-C1110GN CD...

1 Answer

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.

Mar 02, 2011 | JVC KD-G110 CD Player

1 Answer

Radio does not work when key is on accessory

ok the batt wire is orange on the car and yellow on the radio. the accessory wire is yellow on the car and red on the radio good luck hope this helps ya rate as fixya thanks

Oct 01, 2008 | Kenwood KDC-MP335 CD Player

2 Answers

JVC KD-G351 question

It sounds like your stereo is working properly. I've never seen a car stereo that was wired properly that you could turn on and listen to while the car was off with the key removed from the ignition switch. You would have to move the ignition switch to the accessory position in order to get the stereo to work. Hope this helps. Good luck. Mike D.

Aug 21, 2008 | Car Audio Receivers

2 Answers

Wiring a new radio in 1991 ford explorer

1991 Ford Explorer XLT Radio and Speaker Wire Colors
Pulled out the stock radio and found two plugs on the back of it. One plug had 7 wires (Power, Dimmer, Amp etc.) and one had 8 (Speakers).
7 wire plug (I could see these wires immediately from the plug):
Car Radio Battery Constant 12v+ wire = Light Green w/ Yellow Stripe
Car Radio Ground Wire = Black
Car Radio Accessory Switched 12v+ wire = Yellow w/ Black Stripe
Car Radio Dimmer Wire = Light Blue w/ Red Stripe
Car Radio Illumination Wire = Orange w/ Black Stripe
?? Don't know ?? Red Wire (No power to wire Constant or Accessory)
Car Radio Amp Wire = Blue
8 Wire Plug (Wires were wrapped in a grey outer sleeve, had to cut sleeve to get to wires.):
Right Front:
White w/ Green Stripe (+)
Brown (no stripe) (-)
Right Rear:
Purple w/ White Stripe (+)
Light Blue (no stripe) (-)
Left Front:
Light Green (no stripe) (+)
White w/ Orange Stripe (-)
Left Rear:
Light Blue w/ Black Stripe (+)
Yellow (no stripe) (-)
Speaker Wires (found at the individual speakers in the doors)
Right Front:
White w/ Green Stripe (+)
Green w/ Orange Stripe (-)
Right Rear:
Orange w/ Red Stripe (+)
Black w/ White Stripe (-)
Left Front:
Orange w/ Green Stripe (+)
Blue w/ White Stripe (-)
Left Rear:
Red w/ Green Stripe (+)
Red w/ Blue Stripe (-)

Hope this helps. I spent hours looking for the correct color key and this one works for my '91 Explorer.

Feb 08, 2008 | JVC KD-G230 CD Player

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