Miata Mailing List: September 1996, Message #0185
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   From: Richard Dekker 

Subject: Re: Audio Question

   Date: Mon, 2 Sep 1996 22:10:56 -0500



Steve, you've got a classic case of too many ground points with a 

feedback loop having developed.  Take your car to a local car audio shop 

and have a ground loop isolator installed at the amp.  This usually does 

the trick.  I had it in my Protege GT with the stereo that's in my Miata 

now...got lucky this time and no noise.



Regards,



Richard Dekker, Edmonton, Alberta, Canada, M-CLUB #90, MCofA #41997

Founder & President, Wild Rose Chapter - Miata Club of America



1990 MX-5 Miata - Mariner Blue with double white stripes



On Mon, 2 Sep 1996, Steve Hung wrote:



> Hi,

> 

> Ever since I've upgraded my sound system I hear this whining noise that

> follows the engine's rpm. Anyone have a solution to this? Is it a common

> thing for Miata's?

> 

> What are the possible causes? Ignition wires, alternator? BTW, I'm using the

> NGK wires. Any help would be greatly appreciated. Thanks.

> 

> Steve Hung

> '90 Red

> 

> 

> 

> 

> 











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