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Discussion Starter #1
I think my issue is a ground issue! But I can't find anywhere else in the boot to use as a ground? Help


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Perhaps get an earthing kit for the engine bay? The grounding problem is not necessarily at the AMP end.
 

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I used to get a whine through the radio of my corolla when the signal was weak.
It went on for a few months before the alternator failed.
 

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How big an amp is your sub connected to?

shmoke and a pancake
 

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Discussion Starter #6
Well my sub is an active sub so isn't connected to the amp. Only the door speakers are amped? I had no problems at all for a few weeks until one day I took my sub out as I needed the boot and now the whine is terrible


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usually this is caused by bad earth,
you can get a ground loop isolator to run on any phone leads which can reduce the issue but id really just double check your using a good earth
 

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Discussion Starter #9
I've used two completely different earth points? Both the amp and active sub are earthed separately to different points. Then I moved the earth to a better one and it's still the same


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It'll be a ground loop or a dodgy noise suppressor


Google is your friend
 

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Discussion Starter #12
It's just weird how it was okay and then out of nowhere it started??


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Discussion Starter #14
Yeah that's where I have tried but it still gives me problems! Could it be a dodgy earth wire?


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Yeah that's where I have tried but it still gives me problems! Could it be a dodgy earth wire?


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Could be. Try using jump leads to temporarily link the various earth points to see if that cures the problem.
 

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Have a look at the bushes. With any motor/generator, they will go first and cause a whining noise.

Late to the show as usual!
 

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Discussion Starter #18
It's not the actual alternator whining... It's a whining noise coming through my speakers?


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That's not good. You normally get a whine from an amp before it tends to pop... I dunno about car amps, but with touring audio its that or a problem with a cap in a crossover...

Late to the show as usual!
 
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