[sick472]

I'd use window rope caulk for this. The double sided foam tape is also good, but can be a buggar if it sticks and you need to adjust it.

Window rope caulk is found in the window area of most all hardware stores and never sets up, but last forever. I have taken apart cars from the late 60's that had this stuff in them and it was still pliable and still keeping a seal...good stuff for sealing between two pieces of metal that are held together with fasteners. It will squish out of the joined pieces when the screws are tightened and I use a plastic scraper to lightly drag the extra away and off the body panels.