Hi, I have these Jehnert custom door builds for sale sound excellent, the speakers are meant to be MB Quart and are 2 Ohm impedance IIRC, I had them running on a Kicker completion Amp and they sound truly superb very very good Bass etc. They are only for sale as my 43 is now unfortunately written off. You can read about them here, Mercedes C-Class W202 ? Doorboards with 3-way soundsystem | Jehnert Sound Design Automotive Pics of them fitted in my car And the other side, I can sell them complete with the door cards in the pics if required, also included is the multi position tweeter shown in the interior panel by the door mirror. The Kicker Amp is also available. I also have high end Alpine DVD head unit (IPOD lead included) and 6 disc MP3 CD Multi-changer fitted to a 202 OEM CD Changer bracket. I,m not sure how much to ask for them, any questions PM and we can discuss.