Hi guys! I'm new here and I have a question. I purchased my 2014 Mustang V6 auto (I know, I know, I wanted a GT but I'm 20 years old) a couple months ago. She has 26k miles on her. Nearly every time I park on a hill, it makes a noise that is sort of like a mix between a whine and a buzz. I have to put the car in reverse and roll back slightly to make it stop (sometimes it takes 2-3 times). Any ideas what would be causing this?? Thanks.