alt whine gone when RCA touches HU chassis

lotas · Post by **lotas** » Thu Jun 23, 2005 7:30 pm

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

William from NOLA · Post by **William from NOLA** » Thu Jun 23, 2005 7:42 pm

You have a grounding issue with your head unit itself then. You are talking about the female RCA's sticking out of the HU right?

Post by **GlassWolf** » Fri Jun 24, 2005 5:19 am

your head unit is damaged.

lotas · Post by **lotas** » Fri Jun 24, 2005 1:48 pm

William from NOLA wrote:You have a grounding issue with your head unit itself then. You are talking about the female RCA's sticking out of the HU right?

yes I am.

and kiki, is it just the RCA preouts that are damaged then? Do you think it can be repaired?