I tried to fit a new ashtray today to my 166. The current one was broken and I have a brand new one. Theasjtray is easy enough to take out by unscrewing the screw at the base of the unit. The sjtray however has an intrenal light and the wiring is attached in the most awkward position. I cannot reach in and have no idea how to disconnect it to put the new one on. Has anyone performed this feat. You would have thought, with so much space in the central cavity that the engineers could have made it easier !