Ok I don't even know if this site does this or not but I have recently had a very odd happening with my car stereo setup. There is a constant buzz\hum coming from my speakers. It is synchronized with the rpms of my engine. Does anyone know what this is and if so how can I fix it. If any one can help leave a reply and I will tell you anything you need to know about the system.

This should help - http://www.caraudiohelp.com/newsletter/alternator_whine.htm

we shall see, thanks if it works. lol

I mean that seems like it is a pretty distinct problem. I was hoping some has dealt with it before.

Quite likely your problem is alternator whine. If that's the case, lots of people have dealt with it before. The link I posted above should get you started. A google search for "car audio alternator whine" will provide a ton more information, if needed.

This link provides some more common troubleshooting steps you can take: http://www.mp3car.com/vbulletin/faq-empori...r-speakers.html

The most likely cause is either inappropriate grounding of the equipment or a faulty suppressor on the alternator. You can purchase special suppressors for car audio systems but check the former causes first.

I second, most likely there is some faulty grounding some where, or maybe the the wire going to the spark plugs isn't inserted enough. I had the spark plug wire problem in my older car with some no-brand-cheapie wires which didn't give me secure connection between the plug and the ignition system causing the wire to pop little up with loose connection.

Edit: typos. again.

This can have several different causes, and it's likely to require some trial-and-error. It steems to hardly ever happen with a "factory stereo", but when you start adding separate amps & crossovers, you have more opportunity to pick-up noise. And you frequently have more gain & volume, so ay existing noise gets boosted.

If you can't get it solved yourself, you might take your car to a car-stereo specialist. They will have filters (and other things) they can try. And, although you'll have to pay for labor, you won't end-up buying & trying filters & noise supressors that don't help with your particular case... If they try a filter and it doesn't help, you shouldn't have to buy it.