low noise when engine is idle or in gear

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=95824
Printed Date: May 16, 2024 at 2:47 AM

Topic: low noise when engine is idle or in gear

Posted By: daniel-danny
Subject: low noise when engine is idle or in gear
Date Posted: July 22, 2007 at 7:44 PM

I just installed an Alpine head unit to my Acura RSX-S 05.

When the engine is iddle or in gear, I hear a low noise in the speakers.
If I accelerate it sounds like if I had a turbo engine in my car.
The moment I turn off the engine, the sound goes away.

Is this a bad ground problem?
how can I fix it?

I would appreciate your input.
Thanks in advance.

DAniel

Replies:

Posted By: hamzter
Date Posted: July 22, 2007 at 7:59 PM

let me tell you what I have done to try and track down the problem. I would check to see if you have any multiple grounds. it seems like the ground problem can come from opens in circuits and what not.

In my 1991 Infiniti G20 I have a bad A/C Fan switch. I hope to have it swapped out with a brand new one from the dealer on Wednesday. I thought my problem was bad grounding on the headunit.

This time it is not the case.

I am having the same problem as you. Try taking away your ground and see what happens.

good luck.

-------------
Mark "Hamzter" Cinense
1991 Infiniti G20 w/JDM SR20DE
Eclipse CD8445
MTX Thunder 684
Polk DB6750
Polk DB6500
Optima Red Top in the Trunk

Posted By: whiterob
Date Posted: July 23, 2007 at 1:12 AM

My friend had this problem and it turned out to be the head unit. It was the ground on the RCA outputs was bad.

Posted By: sarcomax
Date Posted: July 24, 2007 at 12:25 PM

Are you running through an amp, or just the headunit?