My 05 sport has had a squeak coming from the back when I have people in the back seats (middle or back row). It's been doing it since I got it about a year and a half ago. I just recently put some icon shocks on it and it didn't make it go away. I'm still running the airbags. I had my son bounce on the bumper while I was underneath and I could hear it but couldn't pinpoint it. Anybody else ever have this problem?