Look At This For Me Experts!

[Easycustoms]

it is called Engine Noise. You can buy noise filters that sometimes eliminate the problem. Your amp may also have shitty noise filters or they may have gone bad. your speakers are running off a amp correct? never run speaker/rca wires on the same side as a power wire, the electrical current interferes with the signal. my guess is you prolly have shitty rcas too. remember you get what you pay for in car audio. tap a new ground, underneath the rear deck isnt a good spot. you should try to get a stronger part of the chassis. get 3 self tapping sheet metal screws, no longer than a 1/2 inch, and a star washer, tap a hole (make SURE you clear your gas tank!!!!!!!!!!! im not responsible if you f up), pull the screw back out and put your star washer down along wth your ground cable, then screw it back in, then put the 2 other screws holding it in place. I NEVER scrape up the paint it can promote rust. the 3 screws give your ground a stronger connection and prevent it from moving. I've done it this way for 4 years now and seldom have a car that has engine noise... and usually if it does have engine noise it came in that way.

so thats my 2 cents

You took the words right outa my mouth..Couldnt of said it better myself.

[GSteg]

Make sure your ground is good. Sand down the paint to bare metal for the best conductivity. Try to find an exiting ground and use that point instead of creating another ground. That reduces the chance of getting whine. Also, it doesn't matter how long the ground is as long as your ground is good enough. I have a few components in my trunk with ground wires that are over 3 feet long. They all go into a single distribution block and then grounded to an existing ground in the car.

Also, if you're running crappy RCA, that might be the problem. Usually it's the ground though.

[93twodoorLX]

Could be the ground from your amp is not good enough.

x2

-sean

[Mez]

its alternator whine.. dont get the piece to filter the whine cause it degrades the sound that comes out the speaker.... if anything make sure the ground are properly grounded and seperate from rca's..

[UrDoneSRH]

as you can see theres a trillion different things you can do to fix it, same as things that can cause it. your going to have to go through each option one by one... engine noise sucks. i had a 90 accord in my shop today thats been in for engine noise a shit load of times. i finally figured it out, i disconnected the ground wire, and the amp stayed on, it was a old pioneer and it was grounding through the back seat it was mounted on, so i used abs plastic and mounted the amp on that so it wouldnt touch the seat. it seems to have worked cuz the guy didnt come back.