Some owners have been able to install 5" Polk speakers with relatively little effort. Diamond Audio makes a 4.5" 2 way coax speaker that will just barely fit depth wise, but the tweeter may extend too far to clear the grill without cutting a hole in the grill (Or it comes in a 2 piece 4.5" component kit and the seperate tweeter can mount easily on the grill surface or windshield post. Finally, Scott at www.lajollaaudio.com has a german made 2 way coax speaker by Rainbow that is a direct snap in fit - no modifications.

A search will show a wide variety of other peakers that can be made to fit with modification, it all depends on what you are doing with the rest of the stereo system to warrant a lot of work and cost on the dash speakers. Do a search on '500E stereo' for a long thread on modifying the factory stereo system and adding sub woofers.

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John

2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)

Click to see 87 300E