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It might've been there for a while, but yesterday I suddenly heard static while the volume was a little high before the first song on a CD started to play. I started to notice it after changing a CD, the CD playing before it didnt seem to have the same problem but now EVERY CD I play has background static noise it seems. While cruising at high volumes I can't really hear it, infact the only way I can get a good listen to it is when I first put the CD in and it waits just a few seconds before playing that first song.. My question is: is this normal and I just haven't noticed it for 2 years or should I mess with my EQ/crossovers/wires in order to maybe make it go away? Thanks guys.

 
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This is the same problem that i;ve had several times with different setups. Basically, if you turn the gains down on your amp, the sound will become quieter and quieter. Of course when you do this, it will cause you to have to turn your cd players volume up louder to get the same level of loudness that you had before turning the amp gain down.

This is the exact reason that i have found that i like running my speakers off an amp that is overpowered, that way i can have the amps gain turned down quite a bit, at the present time it's only turned up 1/10th of the way, and stll be getting plenty of power to my speakers to get it as loud as i like. This solved the problem for me.

For the most part i had gotten used to the noise when i had the same problem you do. It always really pissed me off on certain songs from certain cd's that are quiet at the start of the track, one that sicks out in my head as driving me absolutely nuts to the point where i would be embarassed to play the song loud with any of my frends in the car is track 11 of pearj jam- yield, the song is called wishlist...... In reality though, none of my friends care for car audio and they never noticed the sound themselves anyways!!

Anynoe else ever dealt with this?....

oh yeah, one last thing, i had peope tell me that if i bought monster cable 401 xln pro rca's hat the "noise" would disappear. If anybody ever tells you it will, they are lying, because i've spent almost $300 on rca cables for my car and it made no difference whatsoever when it came to the above mentioned "noise"

 
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I've never had noise problems, but I don't play my music that loud.

 
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It has nothing to do with how much ur rca's cost, yes, a more expensive cable will prolly be triple shield instead of the cheaper double shield rca's. The problem is with your wires. When running your wires, they should all br seperated. You most likely have your power wire running next to either your rca's or speaker wires. Always run the power wires and speaker wires on opposite sides of the car. Also, don't let them cross at anytime, this is why u hear this noise. Also, the could be experienced by a poor ground. Make sure that u have a good ground and the ground wire is the same gauge or bigger than the power wire. You can never have to big of a ground. Also, make sure that where u gounded it, that u grinded off all the paint and got down to bare metal. I usually like to use the rear seatbelt bolts.

 
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Did you read what i wrote? i never said anything about ground loop or anything that would result from anything having to do with rca, power wire, and ground wire location.

There are many other noises that can be heard through a car audio system that have nothing to do with wire locations. Have you ever heard of the troubleshooting technique of "muting" an amp, there are many amps out there that produce "sounds" well before there is even a signal put out.