noise problem in front 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=81785
Printed Date: May 10, 2025 at 5:16 PM
Topic: noise problem in front speakers
Posted By: SoundAudio
Subject: noise problem in front speakers
Date Posted: August 19, 2006 at 11:04 AM
Here is the setup: 2005 Mercury Mariner, Pioneer AVIC-D1 head unit to MB Quart RAA 4200 to MTX TXC 6.0 and 6.1 components. It is a high pitched noise that is present at all times the amplifier is on. It changed pitch and was almost eleminated when I moved the signal cables so I though there was induced noise from another wiring harness. I disconnected the signal cable and ran a new one outside the vehicle but the noise persists. I have ruled out the head unit because the noise also occurs if you touch your finger to the positive of the signal cable. Am I right to believe it is the amp and if so, do I need to have the amp looked at for a faulty component that would be causing the noise. This one has really stumped me so any direction would appreciated. Thanks in advance.
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Good Luck!
-Thad
Replies:
Posted By: h2oskierfl
Date Posted: August 19, 2006 at 11:13 AM
Not sure if you have already, but have you checked the grounding points?
Posted By: SoundAudio
Date Posted: August 21, 2006 at 2:10 PM
I checked the grounds. I have an MB Quart RAA1000 and the 4200 running (8ga.) to a distroblock and then that (0ga) to ground. I tried adding the ground to the RCA but that did not eliminate the noise. Any other thoughts?
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Good Luck!
-Thad
Posted By: killer sonata
Date Posted: August 21, 2006 at 2:50 PM
make sure your rcas are not run nexty to any speakers wires or power wires... this inculdes stock wiring. If and when your RCAs need to cross a power/speaker wire,make sure it is at a 90 degree. this will help eliminate noise.
Posted By: kfr01
Date Posted: August 21, 2006 at 3:02 PM
Read and implement nouseforaname's post.
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New Project: 2003 Pathfinder
Posted By: aznboi3644
Date Posted: August 21, 2006 at 4:05 PM
Read and implement nouseforaname's post...lol
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