For some reason this is proving harder then I imagined. I have managed to cook my front door speakers. The woofers coils have had it and trying to find after market replacements is proving difficult. I've always ripped the tat that car manufactures call stereo systems out because they don't sound much better then a transistor radio. That was until I brought my wife a Lexus GS Hybrid with the Mark Levison system in it. It is superb and the bass makes the rear screen move! So, back to topic, if the japs can get it right why can't the Germans.? My question should you chose to answer it is who apart from Mercedes make a speaker with a compact magnet that fits and is a bit more forgiving about being over driven.........