alt whine gone when RCA touches HU chassis

[lotas 10+ year member]

Sorry about the long title. Here's the story, if you just want to plain answer my question, just skip to the bold, thanks.

Already well I installed my system to what I thought was very good. I took a day just to run the wires and put everything back perfectly. I took my time installing everything and making sure everything worked correctly. Ill post pics in a couple days.

Anyways one day I was driving and *something* happened, its hard to explain as I don't remember exactly what happened, but there were some bad noises and some dimming lights (obviously amps clipping). Everything still works fine but now I have alt noise. I regrounded my HU the other day and it went back to normal, no alt whine. Well I went over a bump, now its back!

I pulled out my HU, and realized that if both of the rca preouts (that are not being used, just dangling) touch metal-metal of the HU chassis, the whine and horrid noise goes away. What in the heck does this mean? Do I have to ground the metal shell of the RCA preouts? Thanks for any help guys

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[cjjackson85 5,000+ posts]

...if you just want to plain answer my question, just skip to the bold, thanks.

I see no bold... //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif

 

[SSS 18734 5,000+ posts]

where is da bold where is da bold, give us dee bold, we looking for da bold. where da bold at?

If the RCA's are the case, just wrap electrical tape around the ends of them. Hopefully problem will be solved

 

[btnhfan 5,000+ posts]

Sounds like a bad RCA ground maybe. Wrap a piece of wire around the outer part of the RCA really tight, and touch it to the chasis. If that works, ground it.

 

[zachzchw 5,000+ posts]

You dont need to put anything in bold. If people are too lazy to read a couple paragraphs, then fvck them.

 

[Raven 10+ year member]

If grounding RCAs kills alt whine, then it sounds like a case of jury rigged balanced RCAs. =p

 

[cjjackson85 5,000+ posts]

You dont need to put anything in bold. If people are too lazy to read a couple paragraphs, then fvck them.

No, fuk you.

 

[lotas 10+ year member]

thanks for responses. sorry I copy/pasted from another forum and I guess I forgot to bold the first one. I will try doing what you suggested.