I don't know how anyone could isolate just 1 rattle on a Contour! It's seems to me that they all seem to be rattle traps. I own one, my brother in law owns one, and my buddies girlfiend owns one - I have ridden in all, and they all rattle everywhere. The worst sound isn't a rattle on my car, it's the damn rear sway bar bushings in the morning. Good thing my radio works, I just crank it up and the problem is solved.
But hey, don't get me wrong I love my CSVT. A bad day in a CSVT is better then a good day in a Civic!