2001 gmc sierra speaker problems

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Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=56717
Printed Date: May 01, 2025 at 12:25 PM

Topic: 2001 gmc sierra speaker problems

Posted By: beachface50150
Subject: 2001 gmc sierra speaker problems
Date Posted: May 31, 2005 at 1:04 AM

hello two ? please. I just bought the panasonic CQ-C9700U and 2 sets of alpine type s speakers for the front and rear. well heres the problem when it gets to high volumes the sound will keep cutting on and off like theres a safety circuit cutting in or something. a friend told me i might have wired my speakers backwards but i cant find a wiring diagram for my truck anywhere. Right now im just using the darker colors as the ground but im not sure if that is right so i was wondering if you could mail me the color code and offer any advice as to what might be causing the problem.

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2001 sierra

Replies:

Posted By: txaggiemp
Date Posted: May 31, 2005 at 2:16 AM

the lighter colors are pos on the fronts and the darks are pos on the rears.

lf +tan -gray

rf +light green -green

lr +brown -yellow

rr +blue -light blue

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the customer is not always right

Posted By: thepencil
Date Posted: May 31, 2005 at 8:19 AM

If you have sound coming out each speaker. The problem might be the impedence. Check your speaker wire and see if you are getting a 4 ohm reading. If not there is your problem right there.

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Be careful whose advice you buy, but be patient with those who supply it. posted_image