Teh Noise

Post by **GlassWolf** » Tue May 02, 2006 11:00 pm

NViejeP wrote:Omg! I get a noise like this.
Its like a high-pitched whistling/squeling sound. As I rev or accelerate it gets louder. When I have just the radio on without the engine, the sound is gone. It kind of sounds like its coming from the tweeter, but it could be from th event. When I have the radio low, the sound is there.
I'm thinking that it could be air coming in from a hole somewhere, maybe from the hole they had to drill to run the wire?
This started happening after I got my amp + speakers installed.
Anyone know what is it? Unlike the poster, I dont have the sound when I have the power, but not the engine on, so it is kind of different.

bad ground at head unit, or the amp gain is set too high, most likely.

Darthness · Post by **Darthness** » Wed May 03, 2006 2:59 am

Airforceyooper wrote:Alternator whine. There's a book written about it. I've got that book. :) lol.
How high quality RCAs are you using? How far away from any main power sources are they? Amp power wire? Fuse box area? Etc.?
Is your head unit grounded well? Is your amp grounded well?
Is your car battery in good shape?
What amp are you using?

amps are in my first post but Alpine MRP-F240 and Hifonics TX1005D
Ground should be well but im going to make sure everything is good at my ground distrobution block.

RCA's are ran with the power wire... but i'm going to change that in a few weeks when i get the time to tear my car apart.

HU Ground? lol. if circuit city grounds it.. i guess it is. i figure its probably hooked up to the supplied "negative" wire. Battery should be fine...

edit: i'll check the gain on the amp in a few minuets here.

As for grounding the head unit, do i just solder it to the cage or what? i've never really done that before

Robert Wollenberg · Post by **Robert Wollenberg** » Wed May 03, 2006 3:16 am

My first guess would be the RCA being along side the power wire. Especially if you don't have high quality RCAs. Also, as Glass Wolf mentioned, the gains on the amplifier. Just because CC did the deck install, doens't mean it's done right. Their electrical tape might have gotten hot and sweaty and slid down the wire or something and the wires have come undone. lol. Just kidding. CC better not have used electrical tape.

smoker · Post by **smoker** » Wed May 03, 2006 4:30 am

twist and tape baby its all you need!!!!!!!!!!!!!!!!!!

just kidding of course

Robert Wollenberg · Post by **Robert Wollenberg** » Wed May 03, 2006 4:49 am

yeah, You're saying that Terry, but we all know you just ran out to pull your deck and rewire.

Just playin'

NViejeP · Post by **NViejeP** » Wed May 03, 2006 5:29 am

I'm using KnuKonceptz eKO wires. I had a shop install it for me.

Like I siad, the noise is only there when I have the engine on. It isn't very loud, if I have the music at a decent level, you can't even hear the whistle.

Could it still be the RCAs? Or the gain level? Maybe I'll turn the gain down.

Robert Wollenberg · Post by **Robert Wollenberg** » Wed May 03, 2006 5:38 am

it could definately be your RCAs. Try turning your gain all the way down and see if it goes away.

NViejeP · Post by **NViejeP** » Wed May 03, 2006 5:49 am

K I'll try, might even have to take it back to the shop for them to check it out.

Robert Wollenberg · Post by **Robert Wollenberg** » Wed May 03, 2006 5:55 am

If a shop installed it all, take it back to the shop. But make sure they fix the problem and not just cover it up with a "noise filter."

NViejeP · Post by **NViejeP** » Wed May 03, 2006 7:45 pm

Yup. I turned the gain down, and the noise decreases as the gain goes down. I also went to the shop, they said I can bring it in whenevr to get it fixed.

But just out of curiosity, what is the problem?