Question about 2004 Pontiac Sunfire

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2004 sunfire ignition key wire does it have one/ instaling new radio only have constanyt 12 volt radio power on off button does not shut off do i use this wire and where does it go the ignition wire on the new radio that is thankyou

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I had this problem with my 2004 sunfire. I tried to connect the red wire which is the accessory wire to the blower Moyar wire which was brown this worked but you can only use one setting on the blower motar. Run the accessory wire to the fuse box and add it in with the radeo fuse its 20A fuse. This should work. Then there is no cutting of wires.

Posted on Jul 04, 2013

  • Jose Gonzalez
    Jose Gonzalez Apr 29, 2014

    Where is this fuse box?

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And there are 2 grey wires one yellow2 black and none of these make sense

Posted on Jun 04, 2012

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  • Pontiac Master
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Hi, your factory Sunfire wire colors are pasted below. The yellow wire should be accessory. This should connect to the stereo's red power wire. The orange "always hot" wire should connect to the stereo yellow wire--this is only used to keep your station presets in memory. Please let me know if you have more questions, and thanks for using FixYa.

2004 Pontiac Sunfire Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: Pink
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

Posted on Apr 04, 2011

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  • bracejamie May 22, 2011

    My 2004 Sunfire only has one yellow cable that I've tested and found to be speaker. My constant power is Orange and my Switched power is black. Ground Black. Was wondering what wire is my illumination wire, as well if their is no illumination wire on the wiring harness for the stereo how do I connect it?

  • Jeff Turcotte
    Jeff Turcotte May 22, 2011

    Hi, your factory illumination wire should be gray, but most aftermarket stereos do not use that wire. Some Sunfires do not have an accessory wire. If you do not have an accessory power wire, you will have to run one from the fusebox. Do you have an accessory wire, and does your car have a factory amplifier?

  • bfox1995 Jun 04, 2012

    That wasn't helpful at all cause those aren't even the colors of wire from the car

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1 Answer

Vauxhall Vivaro 2006 , problem with stereo , wont switch on when i turn ignition on , but will switch on if on/off button pressed. i suspect the 12v switched ignition wire .


12 volt constant wire for the memory must be working
should keep the clock working and pre sets

12 volt wire from ignition acc is not giving 12 volts to radio

may have an inline fuse or check radio fuse
internal fuse cover has a legend

using on /off buttons might mean
resetting stations and stuff every time you want to drive


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Oct 27, 2016 | Vauxhall Cars & Trucks

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My power locks do not work until I turn on the ignition of the truck (2004 Dodge Ram 2500). Also, I can't get power to my radio (even after turning on ignition).


I would be checking all the fuse at the panel. Turn the key off and check the ones that are supposed to on(like the door locks). Also they should have B+ power(12 volts or so). When panels go bad Voltage can be anywhere from 0 to 7 or 8 volts. Then turn the key on and check. All the fuses should have power, except the exterior lights. On bad panels you'll see low voltage on some fuses. and with key off, you'll see voltage on fuses that supposed to be off.

Sep 18, 2016 | 2004 Dodge Ram 2500

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2000 Pontiac sunfire won't start makes no noise when turn key over . headlights and radio work and dome light .. I have replaced steering column and ignition switch


This could be a couple different things causing your No-start condition. first thing I would check (Battery is good) access the starter solenoid, the small single wire connection is the start signal. Test for 12 volts here with DVOM or test light while someone turns the key. If there is 12 volts reading, the starter solenoid is defective. If there isn't 12 volts reading check all the fuses (with test light).
The second item causing the trouble could be the Neutral Safety Switch (Auto Trans) or Clutch Safety Switch (Manuel Trans) These could be open or out of adjustment.
Hope this helps you...

Jul 04, 2014 | Cars & Trucks

1 Answer

I connect the acc wire to 12 volt and stereo stays on all the time


The accessory wire is suppose to be hooked up to your ignition wire and not a constant 12 volt power source. Hooking it up to your ignition wire will only give the stereo power when your key is in the accessory position or in the running position. The constant power source that you mostly connected to is meant for the memory wire on your stereo which will allows it to save your setting when you turn the vehicle off and your stereo kicks off. Otherwise you will end up setting the clock and adjusting your EQ every time you turn it on.

Feb 22, 2014 | 2004 Pontiac Sunfire

2 Answers

Add 12 volt outlet switched by ignition


maybe try getting your 12v feed from the radio power, this should be connected to the ignition switch and will run when the key is turned to accessory or the ignition is turned on

Dec 13, 2013 | 2005 Pontiac Montana SV6

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Im installing an aftermarket stereo in my 2002 Grand Am.. I bought an expensive harness and its not working.. I have the radio working, but the ignition wire from the radio is hooked up to battery...


This vehicle does not have a switched power suppy in the factory harness. The orange wire in the car harness is a constant 12 volts.
To resolve connect the 12 volt power supply from the head unit to a switched circut at the fuse block and this will resolve your problem.

Sep 08, 2010 | 2002 Pontiac Grand Am

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What is the color code for the wires to the factory radio for a chevy malibu 2004


1989-1990 And Newer
AS VIEWED FROM MATING END OF CONNECTOR
A B C D E F G H I J
K L M N
Typical GM Factory Typical New Radio
Pin What It Is In Dash Wire Color Equivalent Wire Color
A Left Front Spkr (-) Light Gray White w/ Black Stripe
B Left Front Spkr (+) Tan White
C Right Front Spkr (-) Light Green Gray w/ Black Stripe
D Right Front Spkr (+) Dark Green Gray
E Ground Wire Black Black
F Not Used
G Headlight Dimmer Wire Gray Orange (if available)
H Power Antenna Turn On Pink (if available) Blue
I +12 Volt Ignition Wire Yellow Red
J +12 Volt Battery Wire Orange Yellow
K Right Rear Spkr (-) Light Blue Purple w/ Black Stripe
L Right Rear Spkr (+) Dark Blue Purple
M Left Rear Spkr (-) Yellow Green w/ Black Stripe
N Left Rear Spkr (+) Brown Green
Smaller sized

Mar 07, 2010 | 2004 Chevrolet Malibu

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I have a newer radio and want to install it, but isnt sure which wires connect, they are different colors


use a volt-meter or test light to find the positive supply power from your vehicles wires, and the ground wire too. attach those to the new radio's power wires (and attach the new radio's ignition power wire, or switching wire to the positive power wire from your vehicle too). The point will be to get power to the new radio so that you can do a trial by error to find which speakers turn on when you connect them. Just follow the sound! after you have found all the speaker wires. the last thing is to find which wire from your vehicle needs to be attached to the ignition wire on your radio. This wire makes sure your radio is off when your keys are turned off so not to drain the battery. if you cannot find a switching ignition wire, run a wire to a connection in the back of a fuse panel connection (which you can test any connection with your volt meter to see if it shuts off with the key.

Nov 21, 2009 | 1988 Jeep Comanche

1 Answer

The radio won't shut off when door is open and car is off


If the radio used to turn off but now it doesn't then you have a short either in the wiring or in the radio itself. If you are knowledgeable about automotive electrical wiring and have a volt meter or test light you can troubleshoot it yourself to see where the problem is, otherwise you need to take it to a car stereo shop and have them check the 12 volt connections at the back of the radio to make sure the red (NOT BLUE)accessory wire to the radio is not showing 12 volts when the ignition key is turned off.

Jan 06, 2009 | 2005 Pontiac Sunfire

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