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2003 GMC Envoy door and back speakers quit working.

I own a 2003 GMC Envoy. Over the last 6 months, my stereo speakers have gradually stopped working. When the trouble began, I had just the speakers on just the right side of the car working. The left side wasn't. Then it alternated and only the left side worked and not the right. Sometimes they would come back on when you hit a bump in the road but would go back out a day later. Later on, somedays all of the speakers would work or somedays they wouldn't work at all. Over the last 3-4 months, only the front speakers have been working. None of the back or door speakers work at all. About 3 months ago, my daughter slammed the passenger back door when she got in the car. All of the speakers started working but only worked for about a day. Then went back to the usual front speakers working. Please help me fix this problem.

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  • Anonymous Mar 19, 2009

    I have a 2004 Envoy and i am having the same problem. This has been the most electrically problematic car i have ever had in my life! I'd like to know what the problem is as well!

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5 Suggested Answers

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SOURCE: help with gmc envoy

this happened to me too. turns out the battery is dead and the key is turned on Accessory. the only solution is to replace the baterry witha charged one, charge the battery, or possibly jump start it. I charged mine and it solved the problem.

Posted on Dec 14, 2008

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SOURCE: 2003 gmc envoy xl brake lights dont work

theres usually a pressure switch behind the brake pedal, sometimes the plastic hex nut rattles loose and you have to retighten it.

Posted on Apr 12, 2009

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SOURCE: Engine cranks, won't start. Three days later, it starts???

probaly a fuel pump its common for vehicles to do that the best thing to do next is a fuel pressure check to verifiy its the pump

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SOURCE: my ac/heater fan will not come on until i slam the

you have a corroded wire. somewhere there is a short.

Posted on Jun 16, 2009

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SOURCE: while on hilly road with lots of bumps and potholes, brakes fail

check brake fluid level if LOW good indication brakes are due.

Posted on Apr 22, 2010

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2002 GMC Envoy Car Stereo Wiring Chart
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: The radio harness does not provide a switched power source. Run a wire to the fusebox or ignition switch harness for switched power.
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: N/A
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

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