I got it done - it was a B!^@h to do! There were 2 plastic tension clips at the bottom in back. I had to use a slide in shim to release them from the ash tray asembly. The cubby slid right in easily.
The old cassette holder disassembles. The trays come out of the face plate. I am going to save this face plate in case I ever install a Nak 6 disk in dash changer or signal processer. It looks like there is plenty of room in this area for a full DIN unit.
Thanks for your help!
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E