Report "I Have a rockford bd1001.1 that whines. It definetly has something to do with warming it up cause it gets better after a while but it still will whine randomly after it has had ample time to warm up. It doesnt get louder or anything like engine noise but it is a high pitched noise that is very annoying and makes listening to this system awful. Someone said it was the transformers vibrating. Any way to fix this whine?"