BAMASTANG06

I have a 2006 Mustang GT and I really love this car. I have had it about a year now and I have had a problem with the dash sqeaking and the passenger seat rattleing when no one is sitting in it. I have takin the car back to the dealership twice and they say they have fixied it but the problem persist. I was hoping someone else has had simlar issues and knows how to fix this problem. Thanks.