This topic has probably already been talked about but I am tired and to lazy to do a search. Just installed an amp and when I drive down the street my amp whines as the engine rpm's go up. If I rev the car then the amp whines real loud and then stops. Could this be an improper ground or what else do you think could be the cause of this. Thanks to all who reply in advance

 

Never mind guys. I just noticed a topic about 4 threads down talking about the same thing.