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thumping sound

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=63022
Printed Date: May 14, 2025 at 2:35 PM


Topic: thumping sound

Posted By: j68rh
Subject: thumping sound
Date Posted: September 21, 2005 at 12:42 PM

When my friend turns his blinkers on and rolls his windows up or down there is a thumping sound in the subs kinda like a heart beat its not loud but annoying.  Its a 2000 izuzu Rodeo with the factory 6 disc changer radio in I know everything is hooked up right I just can't figure out where the interfence is.  any one know?



Replies:

Posted By: DYohn
Date Posted: September 21, 2005 at 12:45 PM
Sounds like a bad ground to me.

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Posted By: j68rh
Date Posted: September 21, 2005 at 2:35 PM
I will try to relocate it and see what happens



Posted By: ss-installer
Date Posted: September 21, 2005 at 9:13 PM
how is it wired to the factory radio? maybe a bad input to amp.

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Posted By: j68rh
Date Posted: September 22, 2005 at 7:15 AM
I used the ACC wire off the factory harness


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