Question about Pioneer KEH-P4020 Cassette Player

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Stero not coming on

I have hooked up my stero all wires in the right place all fuses good but the unit will not turn on

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What kind of car do you have? This can make the difference. Many cars with small engines (eg. Geo Metro) simply do not generate enough power to operate the radio. Other times the car can generate enough power to support the radio, but when you plug something into the cigarette lighter/power outlet the radio shuts off because the car isn't powerful enough to handle both. The first thing you need to do is to make sure that the car's electrical output is sufficient to operate the radio, after that it would be a good idea to make sure that all of the wires are connected properly.

Posted on Nov 20, 2008

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Do you have a good ground for the black wire? If you have a good ground, the problem may be a blown fuse in the car. There are two wires requiring power on an aftermarket car stereo, yellow wire – constant power, and the red wire – switched power with ignition on. There are usually two fuse panels, in the passenger area and under the hood near the car’s battery. Check all fuses.
Troubleshooting – with ground wire connected, connect both the red and yellow wire from the aftermarket car stereo together, then connect both to the constant power wire in the dash and test stereo. Then with ignition on, connect both to the switched ignition wire. Stereo works only when connected to one wire in the dash? You have a blown fuse on the other power wire.

Posted on Nov 13, 2008

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Related Questions:

1 Answer

Why is there no power going to my stero unit


Have you checked your radio fuse. Have you recently changed your radio if so are all power wires hooked up?

Jun 25, 2013 | 1985 Chevrolet Monte Carlo

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

We have a 99 cabriolet conv. it has a clear box


chances are that was for an after market hi power stero. If you follow the wires back they will end up under a seat or in the trunk. The amp may still be there. If not follow the wires. Post again on were and what the wires are hooked up to. But I am willin to bet I am right.

Mar 24, 2010 | 1988 Volkswagen Cabriolet

2 Answers

Had dead battery in 2002 honda civic got jump now word CODE in radio display


try disconecting the positive terminal of the batery for sevral minets (5-10) this will reset the brain box memory for the stero aswell as for the car it self.

what caused the batery to go dead in the first place?
things that i can think of :
1) left headlights on over night
2) bad altenator not charging batery
3) battery is old and not taking a charge anymore
4) new stero installed incorectly and drainging the batery
have you resently installed a new stero or amplifyer?
is the turn key igntion system hooked into the amp/stero antena lead so that thy are shut of when the ignition is?
of note: new streo >theres a blue wire marked ant that goes to the amplifyer if not there you need to find the orange accsesory wire coming from the turn key igntion>check for power when ignition is in the on & off states could be yellow in some cars but is usaly orange if this wire has on and of state controled by the turn key igntion this would be the wire to tap into for the amplyfire and the radio main power
check your radio's instaltion guide for code errors
its posible that when hooking up the jump it was done incorectly and blew up the radio
ie postive and negative where fliped
hope this helped :)

Feb 24, 2010 | 2002 Honda Civic

2 Answers

My stero in my car is constantly live even when keys out of car and keeps draining battery how do i fix


The power wire is hooked up to a power circuit such as interior lights or headlights.They work with no key.It needs to be hooked up to a power circuit that is controlled by the key.Fuel pump.Ignition.If ignition,it will need a suppresor to stop the ignition BUZZ coming through the speakers.Hope this helps

Dec 03, 2009 | 1997 Volkswagen Golf

1 Answer

How do you check the fuse on my dual car stero


it shud be in the back of ur unit rite where the wires are ,plug th wires off & ur fuse shud be rite there.

Jul 12, 2009 | Dual XDMR-7700 CD Player

1 Answer

Have a in dash jvc kd-sx750 cds player that won't power on


if you had the speakers hooked up wrong it would just make a crackling sound when it rubs on a surface. if your vehicle has a factory built in amplifier somewhere you may have to hook up the remote turn on wire to the wiring harness to tell it to turn on.
also make sure your illumination and dimmer wire are hooked up correctly if it doesnt display any images on the screen. and if for some reason you think its shutting off because of crossed wires maybe check the ground the batt and the ignition wire ,or the red black and yellow wires. usually when something major like those three wires get crossed it blows fuses in the car taillamp fuse stereo batt fuse ect. check all those .try resetting the deck of the car battery thats all i can think of now.

May 06, 2009 | JVC KD-SX750 CD Player

1 Answer

When I turn off my car my stero resets all it's setting


Mike
Here is a owners manal and wire diagram on page 55. You have the yellow wire hooked up wrong need to put to a constant hot not one on a switch.
http://inform3.kenwoodusa.com/manuals/KDCX889.pdf
Good Luck

Dec 18, 2008 | Kenwood KDC-MP628 CD Player

1 Answer

ELECTRICAL PROBLEM


The prob seems like you have connected the power to your stero from the wrong place. You cut into live a wire for the power, this should be connected at the ACC on your fuse panel. Also make sure you stero has a good ground! Frankster016

Oct 23, 2008 | 1989 Ford F 150

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