There are two little flat slots on each bottom corner of the radio that you insert a pair of MB special tool 'keys'. I have never tried to insert anything else because I have always had (and never lost) the correct tool. But with a phillips screwdriver you can remove the storage compartment behind the shifter wood (2 screws at the front), 1 screw holds the back of the shifter wood down, remove the ashtray insert and remove the 2 screws down under and after you pull the ashtray out you can reach under the radio and pull it out. Oh yeah, make sure you have your radio code BEFORE you unplug the radio because it wants the password or it don't work no more.
Quick and simple in just a few minutes...

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