BLAM Relax BL-100MNC Mercedes Benz/ Tesla 3 100mm (4 inch) 2-Way Coaxial Speakers (PAIR)BLAM presents the RELAX 100MNS, a set of innovative 2 way 4 Inch (100mm) coaxial speakers perfectly designed for select Mercedes Benz and Tesla 3 car models. Speaker upgrades can be more difficult on Mercedes car models as they have very narrow 10cm slots in the doors and very specific subwoofers under the front seats. The 100MNC speakers from BLAM are custom made to make the installation process faster and make the sound image more precise and clear.