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The yellow wire on the power plug on a car stereo came unplugged and we are not sure if it goes in the last plug in or next to last

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You should have a plug with a red wire and a black wire and possiblely a blue and a blue with a white tracer, most cars have these with the yellow wire all in one section of a plug or a separate plug for just the power side of the stereo

Posted on Jun 28, 2009

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1998 sony stereo/ CD player wiring diagram. Install in place of stock 96 ford stereo with tape player


Usually red is pos. goes to constant power source. Orange or yellow to keyed power source. Blue is for power ant. and matched wires are your speaker wires. Match these to yours cars wires. Oh black goes to ground.

Nov 02, 2014 | Cars & Trucks

1 Answer

I need a radio wiring diagram for a Holden Commodore LS 1991


Regardless of colour coding, please follow the following instructions (require multimeter):


Note: Attach multimeter earth wire (black) to the vehicle body. Convenient places may be the metal ignition barrel, the vehicle's car arial plug, cigarette socket body etc.


1) Testing for voltage with key out of the ignition, locate the permanent positive wire. This will wire into the yellow wire on your new stereo. The yellow wire circuit powers the stereo's memory.


2) Testing for voltage again. This time you are testing for a wire which only offers power with the ignition turned on. This one will wire into the red wire on your new stereo, and will power the unit only with the ignition on.


3) Now you know which your vehicle's positive wires are you can now test for an earth wire. Switch the multimeter to the resistance setting. There is one setting which will allow a buzzer to sound once you find continuity. With the ignition off test each wire until you get a buzz and a low resistance reading. This should be your earth wire. Double check this with the ignition in the on position. It should remain the same. If it changes to a positive with the ignition on and with the vehicle's lights switched on, then this is the dimmer feed for the stereo's screen. If you unintentionally found the dimmer feed, then you can ignore this wire, and search again for a wire which only offers an earth.


Now you have your power and earth wires located and can wire these into your stereo before continuing.


4) Next you need to use the stereo's balance and fade controls to allow only one speaker output to work from the stereo. So let's start with Left Front speaker output only. turn the stereo volume to mid way so that you can hear when you have connected to the right speaker. bare the remaining wires on the car side and test combinations of the remaining wires until you find the front left speaker of the car. Wire your stereo's wires once you find the correct connections.


5) Repeat the above steps with all remaining wires, remembering to adjust your stereo's balance and fade controls to only allow one speaker output at a time, to ensure the only one possible channel to work and help you identify which of the car's wires power the speaker you have selected.


Before re-assembly of the dash panel, check that your stereo and all functions work properly, being sure to use your fade and balance controls again to test all speakers individually.


If you want to be extra careful and wire the vehicle's speakers positive and negative, according to your stereo's outputs, not that this makes much difference on standard stereo arrangements, then follow this next step:


Make sure you can see the speakers themselves and connect a 1.5 volt AA or AAA battery to the speaker wires. If the speaker's cone pushes forwards, then the wire you connected to the battery's + terminal is indeed the positive wire and should be wired as such. If the speaker does the reverse, then you have the wires the wrong way around. Do not repeat this test for extended periods as damage may be caused to the speaker circuit.


Tip: Always solder all connections and insulate well from each other. Stereo connections can corrode over time and are prone to movement behind the dash. Poor connections may cause faults and low quality sound.

Oct 30, 2012 | Cars & Trucks

1 Answer

Constant power supply


next time by the wire harness that plugs it into the factory wire plugs never cut the factory plugs off you have wired something wrong you may damage something or start your truck on fire.

Apr 04, 2010 | Alpine CDE-9845 CD Player

1 Answer

Phase linear UV 10 Multimedia player.


CAN I ADD AS AUX OR SOME WAY TO MY EXISTING STEREO? HOW?

Apr 03, 2010 | Jensen VM9510 Car DVD Player

1 Answer

Yellow wire unpluged from radio


Sure. The wire u are looking 4 is located in the bottom right side of the plug. Under the Bat (Red) and Ground (Black). On the last hole on the harness. Had same problem. Hope this helps you.

Jul 18, 2009 | Jensen VM9410 Car DVD Player

2 Answers

Need a stereo wire color code for 2000 subaru outback limited


The sell a nifty little invention at Wally-World. Its called a wire harness...look for it in the auto parts section. it will wire directly to your stereo wires and then just plug & go... if your subaru wires are missing the harness on the end, its a whole different ballgame, and its gonna be fun...try this...

Car Radio Battery Constant 12v+ Wire: Blue/Yellow
Car Radio Accessory Switched 12v+ Wire: Yellow/Red
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Green
Left Front Speaker Positive Wire (+): Brown/White
Left Front Speaker Negative Wire (-): Green/Black
Right Front Speaker Positive Wire (+): Red/Yellow
Right Front Speaker Negative Wire (-): White/Black
Left Rear Speaker Positive Wire (+): White/Red
Left Rear Speaker Negative Wire (-): Red/Green
Right Rear Speaker Positive Wire (+): Blue/Green
Right Rear Speaker Negative Wire (-): Red

Let me know how it goes!

May 17, 2009 | 2000 Subaru Outback

2 Answers

I`M REPLACING THE ORIGINAL RADIO ON A 1996 GMC JIMMY, I NEED TO KNOW WICH WIRES ARE WICH, (ALL THE POWER ONES) OLD RADIO NOT AVAILABLE


PLEASE RATE MY SOLUTION, THANKS.


1996 GMC Truck Factory
Stereo Wiring Chart
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue












Mar 08, 2009 | 1996 GMC Jimmy

1 Answer

Red wire missing


the power wire goes above a blue wire or next to (white/orange) and (green) in top row if there is a space there
yellow should be above black
(white/orange) should be above (blue/yellow) i think
than red over blue
hope this helps

Jan 11, 2009 | Pioneer AVH-P6400CD Car DVD Player

1 Answer

No red power wire


should be next to or above yellow wire.
if not, re-post

Jan 11, 2009 | Pioneer AVH-P6400CD Car DVD Player

1 Answer

Pioneer AVIC-N2 does have unlock code?


no, this radio has no security code... Check to see that you have power on the yelow wire at all times, Power on the red wire when the key is on, and make sure the black wire is grounded well. something could have been disconnected at the paint shop.

Jan 03, 2009 | Pioneer AVIC-N2 Car DVD Player

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