stereo
 

hi. i have a prob with the stereo in my s2.when the engine is running i can hear the engine through one of my rear speakers if i rev the car it gets louder.

thanks in advance

you're getting feedback from the alternator.....

or, you've fitted an uprated stereo and your 12V line to the battery is touching your RCA Audio leads.

you need a sound surpressor

will check above cheers