road noise
 

its easter, and a nice day, so i figure why not try and find out how to get rid of it

when the stereo is on a low volume, during accel. i hear the alternator hum, and its really bothering me...power and RCA's are run on opposite sides of the car. All four speakers are amped as well as two subs in the back. I upgraded to a higher quality RCA, but to no avail...

does ne one else have a good idea to try and kill this...