Radio 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=6805
Printed Date: September 11, 2025 at 10:26 PM

Topic: Radio noise

Posted By: cbdenver
Subject: Radio noise
Date Posted: December 17, 2002 at 12:48 PM

All,

I have a Rockford Fosgate RFX8350 head unit and the radio (FM&AM) has a lot of static. I've checked the antenna wiring and it is grounded to body well.

Could a bad HU ground cause this? Should I ground the HU to the same place as the amp? I don't have any alternator noise, but I really want to make the radio reception better. I live in Denver and my last HU (JVC) had no problems with reception.

Thanks for any ideas or help!

Replies:

Posted By: bberman1
Date Posted: December 17, 2002 at 1:05 PM

Go to your local automotive store and purchase a new antenna to use as a test antenna doesn’t matter what kind of car it’s for as long as it works. . Plug you test antenna into the back of your head unit if it works fine than you know the problem is on the antenna’s side if it doesn’t then it’s the head. Also what kind of car is this in? Post your results so we can further assist you

Posted By: cbdenver
Date Posted: December 17, 2002 at 1:06 PM

This is in a 97 4Runner w/ automatic antenna.

Posted By: bberman1
Date Posted: December 17, 2002 at 1:07 PM

Also one more thing I forgot to ask do you get any AM reception?

Posted By: cbdenver
Date Posted: December 17, 2002 at 1:12 PM

Thanks! I get AM reception about as good as FM.

Posted By: Velocity Motors
Date Posted: December 17, 2002 at 1:13 PM

You may hav damaged the male connector plug when you took out the antenna from the JVC unit. Make sure that there are no breaks or loose end on the male end of the antenna.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: cbdenver
Date Posted: December 17, 2002 at 1:14 PM

Thanks everyone. I will check the antenna end etc. tonight. Any thoughts on the grounding being bad? would that cause radio problems you think?

Posted By: Velocity Motors
Date Posted: December 17, 2002 at 1:19 PM

Anytime a ground is bad or corroded, you will get problems with electrical devices. Check all grounds from the deck, antenna,the antenna cable from the rear to the front and also check to make sure that the ground on the deck is thick enough gauge as well as short enough that it is not giving too much resistance on the unit. The shorter the ground wire the better the absolute ground for all components attached to it.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA