lx470atl

I have a '99 with the annoying dash rattle, sounds like leather slightly rubbing together. I have removed the instrument cluster, the radio, the air vents and it still persists. It seems to be lessened when I push on the dashboard so something is loose, but what - I can't figure out. This truck is so quiet other than this little annoying rattle. It does seem to go away when the weather warms up, so for 8-9 months I dont hear it. Michael