It literally drives me crazy!!! It only squeeks when I drive over small sharp bumbs. It is a high pitch squeek that has a very short duration when it occurs. If I am on a bumpy concrete road with large seems that dont match up very well it sounds like I have a small bird chirping somewhere. I had one of my friends try to find it when I drive. He applied pressure in several directions against the a pillar, corner of dash, defrost vents, glove box (open and closed), Door panel, all heating vents in the general area, and the door handle. I even thought it could have been the physical connection of the vents between the dash and the door (nope). I lubricated the hood hinges, looks ok. It almost sounds like the noise is comming from inside the dash itself.