I saw some pics (I don't remember where) but you have to remove the wood paneling above the shifter. The bolts that hold your shift knob are beneath the shifter gate. It didn't look to difficult. You can see how to remove this panel under the DYI section - look at the stereo removal section. It's for an older E but I'd think the later models should be similar (they're all 124s right?).

Tom