I was wondering if anyone else has a squeeking noise comming from the back of their Scion xB ? I thought it was the foam insulator in the back, but I took it out and it still made the noise. I think it's comming from the back seats. So, I was just wondering....

It is probably coming from the passenger side of the rear seat where it latches to lock in place.There is a TSB on it and tons of posts about it.

Check this post out! This will help you:

http://www.scionlife.com/forums/viewtopic.php?t=6534

:D