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Buzzing noise, but not all the time.

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=3872
Printed Date: May 02, 2025 at 6:03 AM


Topic: Buzzing noise, but not all the time.

Posted By: WRXtreme02
Subject: Buzzing noise, but not all the time.
Date Posted: September 22, 2002 at 5:22 PM

I also posted this in another forum, sorry for the double post.

I finished my stereo last week.
I have installed the following:

Sony Xplod CDX-MP70 MP3 Player
Alpine MRV-F450 5 Channel Amp
JL Audio 10" W3 Sub In ProWedge Enclosure
JL Audio XR650-CS 6.5" Components (front doors)
JL Audio XR650-CX 6.5" Coaxials (rear doors)
Lightning Audio Strike Series 1 Farad Stiffening Capacitor with Digital Monitor and all Lightning Audio Strike Series Wires.

Here is the problem:

There is a noticeable buzzing noise that comes on only once in a while, when it wants to, there is really no set pattern.  If I shut the deck off, turn it back on, the noise usually goes away and then comes back in a few min.  You usually hear it when you turn the volume all the way down.  When the buzzing noise comes on, you can hear it fade in, starts off low, then gets louder.  The funny thing is, if you turn the volume up just one click, the noise gets quieter, but is still present.  I believe this is not any type of power or ground problem because of the following, the noise does not get louder when you step on the gas, and the noise can happen with the car off.  Patch cables were run on the opposite side of the car away from the power cable.

Anyone have suggestions on this one?

Thanks




Replies:

Posted By: Reeceddogg
Date Posted: September 23, 2002 at 8:05 PM
Make sure you use wire loom around the patch cables and check your local install store for a nosie filter/suppressor sounds like it could be altenator noise.



Posted By: WRXtreme02
Date Posted: September 23, 2002 at 8:43 PM

Thanks for the reply.posted_image

If it was alternator noise, wouldnt it get louder when you step on the gas?  It also does this with the car off as well.




Posted By: djfearny2
Date Posted: September 24, 2002 at 8:30 PM
try connecting a 8 guage ground wire to the alternators ground and to the ground around the engine like a peice of metal not any other part of engine. fuse this just in case anything if the fuse blose right away you conected to the wrong wire. 


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