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2004 gmc sierra, amplifier stopped working

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=118255
Printed Date: July 21, 2025 at 12:05 PM


Topic: 2004 gmc sierra, amplifier stopped working

Posted By: filby
Subject: 2004 gmc sierra, amplifier stopped working
Date Posted: December 05, 2009 at 2:23 PM

PLease! need help!

Going to install aftermarket stereo in truck for christmas gift but amplifier has stopped working. is equipped with bose stereo and was told that even if i change stereo it will still use the factory amplifier which doesn't work!!! is there an easier way to make this happen without rewiring the whole truck???!! would like to utilize the amplifier in the aftermarket stereo..... thanks!



Replies:

Posted By: i am an idiot
Date Posted: December 05, 2009 at 3:18 PM
If the amplifier is not working, you will have to bypass the amp, or get it repaired.   What are the chances that a drink got spilled into the center console?




Posted By: filby
Date Posted: December 05, 2009 at 3:22 PM
thanks for the post
how do you bypass the amp?




Posted By: i am an idiot
Date Posted: December 05, 2009 at 5:02 PM

i am an idiot wrote:

 What are the chances that a drink got spilled into the center console?

It may be easier to repair the amp than it will be to bypass it.  The amp is probably located under the center console.  All os the speaker wires of the vehicle are connected to the amp. 





Posted By: filby
Date Posted: December 05, 2009 at 6:24 PM
ya i believe the amp is under the console.... i dont think anything was spilled on it but what would be the best way to test the amp to see if thats in fact why the stereo isnt functioning
theres power to the stereo it turns on but just static nothing else has changed it just got progressively worse from sound w/static gradually to just static only




Posted By: i am an idiot
Date Posted: December 05, 2009 at 6:34 PM
Does the static come from all speakers, or just one of them?  Does the balance and fader affect which speakers make the noise?




Posted By: zerepdivad
Date Posted: December 05, 2009 at 8:14 PM
Try hooking up the deck. I've seen it where the factory deck has just gone bad causing similar symptoms. Bad thing is though if you do end up bypassing the bose amp pos you'll likely run into impedance issues with the factory bose speakers. They often times, are 2 ohm impedance, which an aftermarket deck alone will not last long running.

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A DMM is a beautiful thing.

MECP Advanced Installer Certified.




Posted By: boxhead78
Date Posted: December 16, 2009 at 11:11 PM
find the wire to turn on the amp and connect it to the aftermarket amp.then your amp will turn on

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boxead78




Posted By: boxhead78
Date Posted: December 16, 2009 at 11:13 PM
Radio 12v
posted_image
 orange
posted_image
 +
posted_image
 radio harness
posted_image
  
posted_image
Radio Ground BLACK/ white  -  radio harness   
Radio Ignition (Class 2 Serial Data)       
Radio Illumination N/A       
Factory Amp Turn-on pink  +  radio harness   
Power Antenna N/A       
LF Speaker +/- tan - gray  +,- radio harness  posted_image
RF Speaker +/- lt. green - dk. green  +,- radio harness   
LR Speaker +/- brown - yellow  +,- radio harness   
RR Speaker +/- dk. blue - lt. blue  +,- radio harness


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boxead78




Posted By: phungus28
Date Posted: December 22, 2009 at 10:06 AM
eclipse deck cd3434 wire harness diagram?

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phuongnguyen





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