This thread tells how I installed mine without drilling: http://www.peachparts.com/shopforum/showthread.php?threadid=26187&highlight=speakers+rubber

There are other technigues to be learned from the archives on what size/brand speakers fit - search "300E speakers" , and similar terms. There is also a stereo removal guide in the DIY tab at the top of the page. Enjoy!

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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