has anyone got any idea how to stop my boot rattling with the beat of the woofer, while i can't hear inside, outside people can, loudly, especially pulled up a traffic lights

instead of a doof doof doof you hear a darnk darnk darnk( outside that it, inside it a wonderful clear doof doof)

Have you tried doing a forum search on this? This is a common occurence with audio installs and has been covered many times. Just to let you know, I typed sound deadening in search and found a number of threads on this... the first one I saw that might be of use to you is this one... you could even type in rattling, I am sure it will find entries too.

http://www.aussiemagna.com/forums/showthread.php?t=23771