just wanted to post the link for w202 speaker adapters front doors and rear doors, it was a real pain in the ass trying to find someone who ships internationally so here:

http://www.nexxia.co.uk/Speaker_adap...cedes_benz.htm

sak-2001 for the fronts up to 6.5"
sak-2011 for the rear doors up to 4"

i had trouble so hopefully this makes it easier for some...