Re: boot rattle
to get rid of the rattles in ur ass end of th car or anywhere in the car etc, its called sound deadening........theres quite a few products on ther market to use.....choices are dynamat (one of the leading ones), stinger roadkill, flastac(available at bunnings in isle 1) as well as a few others ..
these are all basically a heavy tar based product with a foil based backing that when applied help absorb the vibration of the panels by making them denser.......
to help stop the vibration between the lid and the bracing (before covering with the sound deading) try using sikaflex between the joints, and be careful with expanding foam as depending on how much it expands each time, u may end up with a bumpy outer skin)
anyway, Have fun, SQRL