Dash rattles over bumpy roads...

[tobyw]

Are there any "common" dash rattles associated with the 2003 Yukons? I had a 2002 prior to this, and it was rattle free. However, after 28k miles on this one, every little bump in the road causes an annoying rattle from under the driver's side of the dash and another from what seems to be behind the stereo/HVAC controls. I've removed the instrument cluster, but found all of the wires to be nicely loomed and the dash to be cushioned darn near everywhere with felt pads... In short, I can't find where it's coming from and I'm wondering if anyone else has had any similar issues and has actually been able to resolve the prolem(s)? Thanks in advance!