Rattling noise

What is your question?

I hear a rattling noise on my 2004 Ford mustang not when I am accelarating or breaking. It is not all the time but mainly when I am going around 10 miles an hour getting ready to stop or slowing down. As I accelarate the noise goes away.

What makes this problem better or worse?

When slowing down.

How long has your 2004 Ford Mustang had this problem?

A couple of weeks