I have a 2003 Acura TL Type S which makes 2 buzzing sound when I first put in drive.?

[darkchocolateseller]

I have a 2003 Acura TL Type S which makes 2 buzzing sound when I first put in drive. After that the buzzing goes away. But when you start the car everything it buzzes when you put it into park. What could be the problem?