altrenater noise or engine noise

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=60891
Printed Date: July 07, 2025 at 7:35 PM

Topic: altrenater noise or engine noise

Posted By: beamnmer1
Subject: altrenater noise or engine noise
Date Posted: August 07, 2005 at 5:06 PM

Hi guy's this has been driving me crazy for a while now i tryed to figure it out .like rewire the hu and the amps and x-over but it's still there. the nosie i get is wining, turn signal nosie, and when i turn the key to acc. i get noise there to.i also tried to go from the hu to the amp that didn't help.is it normal to have ground at the rca's. if i unplug the main rca from the x-over i still have ground signal at the other input's.i also remember using a noise reduction filter and that did't help. is there a nother way of doing the noise filter (drawing if possible).:x:(:errr:

thank you nelson

Replies:

Posted By: blackmica3
Date Posted: August 07, 2005 at 5:55 PM

I've run inot that problem once. And another installer had pinched the speaker wires causing a ground loop. I had went as far as changing the power, ground, and RCA cables and still had the noise. So i removed the entire system and noticed the pinched wires.

Posted By: jeffchilcott
Date Posted: August 07, 2005 at 6:08 PM

also check you battery, I ran into this problem once and it was actually because the battery was low, and had to be refilled with water.

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