Question about 2003 GMC Envoy

Open Question

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.

Posted by on

  • 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!



6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 1 Answer

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

  • 3 Answers

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

  • 1 Answer

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

Posted on Apr 15, 2009

  • 236 Answers

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

  • 244 Answers

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

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer


Let them try the repair, but I really doubt the technician will pull the door panel, they will likely check the wiring harness from the radio out to the speakers first.

Nov 15, 2016 | GMC Cars & Trucks

1 Answer


the last cylinder is the number 6 front to rear

Sep 11, 2014 | 2003 GMC Envoy

1 Answer

How to Install 2013 Sierra Stereo in 2003 GMC Envoy XL SLE With Bose

You may lose the Bose amp too. That would be no sound from the speakers too. I don't think they will exchange.

Jun 19, 2014 | 2003 GMC Envoy

2 Answers

Why did the speakers in my 2005 envoy suddenly stop working?

Check the wiring harness on the back of the radio to see if it's loose. If you have a Bose system, the amplifier may be going bad.

Jun 08, 2014 | 2005 GMC Envoy

1 Answer

Stereo speakers only work when outside temp is 75 or greater. No continuity to speaker wires. According to schematic diagram I suspect connector c304 is not connected properly but I can't find it. Where...

there have been problems with speakers doing this over the years. and there are 2 points number one the speakers in the doors are getting damp and the connector on the speaker/s has become unworkable. 2 the amp on the radio itself has a problem ( amp can become temperature related i.e there is the main amp chip sits on the heatsink some will become used to certain temps and turn off if not at this temp or goes over it. there is a working temp on some of these chips between -3c to 75c any higher or lower it will not work this setting in the chip can go wrong) . what you need to do to determine what is what you need to take the door panel off and test the speaker in that door.. if it is the external amp there is 2 areas it can one is under the rear seat the other is the the boot side panels this all depends on the amp fitted. if under the back seat there is sometimes a chance of damage from rear passengers jumping up and down on the seat... hope this helps.

Feb 16, 2014 | 2004 GMC Envoy

1 Answer

I have a 2003 Envoy and the entry lights will not shut off and the drivers door panel will not work. The headlights quit working and now the interior buzzer has stopped working.

"You can hold the the dimmer switch back and the will come on but as soon as u let go they go off." Try pushing it forward.

Jul 21, 2017 | 2003 GMC Envoy

1 Answer

Raido wire diagram 2002 envoy

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

Jul 23, 2012 | 2002 GMC Envoy XL

1 Answer

I have a 2002 4-door Envoy extended length. Three years ago the rear HVAC stopped working; 6 months ago the left rear electric window stopped working; yesterday the right rear electric window stopped...

I doubt there is a common cause. The rear HVAC needs to be diagnosed by a HVAC technician. The electric windows problem is probably a bad motor in the door. Do the rear windows work from the driver's controls? If they do, then it is the window switch that is faulty.

Aug 28, 2010 | 2002 GMC Envoy

2 Answers

The radio on my 2003 Envoy quit working. The display on the radio says "need amp." A new amp was put in and the radio still does not work. What could be wrong?

Radio sends a 12V signal that switches on the amp which has it's own power suply but won't switch on till signaled from deck. Check to see if the amp is powering up.

Nov 12, 2009 | 2003 GMC Envoy

1 Answer

2003 GMC Envoy lower 3 heater fan settings quit working.

had same problem on my XUV. changed the blower motor resistor, located under passenger side dash. easy to change, works no problem.

Jan 20, 2009 | 2003 GMC Envoy

Not finding what you are looking for?
2003 GMC Envoy Logo

Related Topics:

744 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

78267 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides