See the D.I.Y. section. John Elliott wrote an excellent article on this subject. Look for "W202 Door Speaker Replacment" in the D.I.Y. section. The stock Mercedes speakers are utter crap. When I replaced the speakers in my C220 I ended up building new custom mounting frames for the 6 1/2" door speakers made out of 3/4" MDF. How far you want to go with this project depends on your budget and your Audiophile desires.