Question about Sony CDX-F7710 Car Audio Stereo CD MP3 Player Flip-down detachable aluminium CD Player

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Car Stereo will not turn on

I connected all the wires to a wire harness but the CD player will not power up. An eariler radio short curcuited the headlights, interiror lights, and brake lights, but a change of fuses fixed that. I changed the fuse for the radio in the vechile and nothing still happens. What couild be the problem.

Honda 94 Civic Dx
Sony car radio

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Re: Car Stereo will not turn on

Voltage Regulator which is situated a the rear of the stereo. FixMyRadio .net

Posted on Jun 05, 2009

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Re: Car Stereo will not turn on

Most headunits (cd players) have fuses of their own. If those are are not blown, connect a simple test light to ground and with the ignition on, test your constant (yellow wire) and accessory (red wire) for power. If all fuses are good and you still have no power you can connect your red and yellow wires (whichever shows no power on the test light) directly to your vehicles fuse panel.

Posted on May 20, 2009

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Hi there,

Well you can please follow the below steps -
1. Disconnect your car battery. It is vitally important to your safety that you never work on any type of electronic in your car with the battery still connected, as this puts you at risk for electrocution.
2. Remove the old stereo by taking off all the dashboard panels surrounding your stereo, sliding out your old stereo head unit, and unplugging all the wires that are connected to the head unit. Discard the old stereo.
3. Take your Pioneer car stereo head unit and plug each of the positive wires from your car speakers to the positive terminals on the head unit. Take all of the negative speaker wires and connect them to the negative terminals on the head unit.
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5. Connect all of the ignition power wires to your Pioneer stereo.
6. Take the harness connector and plug it into your car stereo. Now plug the antenna into the back of your head unit.
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8. Reconnect your car battery, turn the car on and test out your new Pioneer car stereo. Please post comments for more help or information..........

Good Luck!!


Jan 16, 2010 | Sony CDX-F7710 Car Audio Stereo CD MP3...

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What wires go together for the constant on a 94 ford ranger

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its the ribbon wire inside i have the same deck with the same problem and it cost me 100$ to have it fixed since the warranty was no longer valid any pioneer repair place can do this for you. All you need to do is take them the head unit not the wiring harness so at least you dont have to unhook it all

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try this to see if the right wires are there it normally cost about 130 to get a professional to do it

Radio Constant 12V+ Wire: Blue/Yellow
Radio Switched 12V+ Wire: Gray
Radio Ground Wire: Brown
Radio Illumination Wire: Dark Green
Dimmer Wire: White/Green
Antenna Trigger Wire: None
Front Speaker Size: 6 1/2′
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Right Front Speaker Wire (+): Green
Right Front Speaker Wire (-): Blue
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Left Rear Speaker Wire (+): Black
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Right Rear Speaker Wire (-): White
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