I have noticed that when I am in drive and stopped I can hear a whine from the engine. I have come to the conclusion that it is my alt. Its a 130 amp alt. I noticed when I turn my headlights on or my driving lights, the whine gets louder. When the car is in Park, there is no whine at all. I don't know why it does this. Do I have to up grade that wiring for the alt? I have it connected directly to the battery with a thicker wire and thats it. Thanks for the help.