Engine Noise Through Speakers

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=14275
Printed Date: July 26, 2025 at 2:41 AM

Topic: Engine Noise Through Speakers

Posted By: Clubscene
Subject: Engine Noise Through Speakers
Date Posted: June 01, 2003 at 6:50 AM

As above but really only occurs on Radio. It is barely noticable on CD (passenger front left speaker only). The car is a Subaru Impreza with a Pioneer 8400 Head Unit running an Alpine 6 Speaker Sound System.Its not the Head unit, as it does this with the original 1 as well. The strange thing is when I put the Pioneer in at first it cured the problem but the Pioneer died due to a dead short in a speaker cable. It was sent to Pioneer for repair and when I got it back, it started doing the same thing as the original head unit, dreaded engine noise.

Replies:

Posted By: Clubscene
Date Posted: June 01, 2003 at 6:51 AM

Any simple soloutions?

Posted By: DYohn
Date Posted: June 01, 2003 at 7:44 AM

Try running new speaker wire, especially is it is only one channel.

Posted By: Clubscene
Date Posted: June 01, 2003 at 8:21 AM

No its only 1 channel on CD, on Radio its all channels!

Posted By: Big Purds
Date Posted: June 01, 2003 at 10:58 AM

check all grounds and make sure they are OK...

it *could* be your alternator creating interference, which the radio *could* be more sensitive to thus resulting in the difference between radio and CD...have you installed an amp?

Posted By: Clubscene
Date Posted: June 01, 2003 at 11:23 AM

No amp installed. How do I check the grounds?