whining noise from radio

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=76544
Printed Date: July 14, 2025 at 2:11 PM

Topic: whining noise from radio

Posted By: ghettob
Subject: whining noise from radio
Date Posted: April 20, 2006 at 10:50 PM

i have an 05 300c with a pioneer dehp-8600mp, there is a whining noise coming out of the amp subs and mids never had this problem until recently, not the amp, or grounds, power connections

when i pulled the stereo and jiggle the power harness the noise stops or get worse or better specificaaly moving the power,acc,ground wires, remote

what would cause this and how do i fix it

the noise gets worse as the accelerator goes up but not present when the car is off or on acc

the amps are punch 700s, punch 601s with rockford fosgate rcas

please help

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B

Replies:

Posted By: godblessdremil
Date Posted: April 21, 2006 at 12:23 AM

Alternator noise, how high do you have your gain set? And re-check your ground, it should not move and the area should be stripped of paint. Make sure your conections at the amp are secure. Check back after that.

Posted By: forbidden
Date Posted: April 21, 2006 at 12:58 AM

Get rid of noise maker Pioneer and known issue of crappy internal ground plane.

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Top Secret, I can tell you but then my wife will kill me.

Posted By: ghettob
Date Posted: April 21, 2006 at 7:19 AM

the deck has 4 volt outs so gains are as low as they go, grounds are8-10" different for each amp to the body

the problem is with the deck when i wiggle the power harness in the back the noise stops,gets louder, softer

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B

Posted By: geepherder
Date Posted: April 21, 2006 at 8:13 AM

Ditto on what Rob said. Thank you for again proving his point.

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My ex once told me I have a perfect face for radio.