I read all the info ref. center vent light replacement but it didn's seem to fit my 92 400E. I removed a screw from the vent side via the glove box, and released the clips from the top and bottom of the left side of the center vent, but it seems to be held in by a connection from the "wheel" to the inner workings. It's bad enough the local Benz dealer charges $1.40 Cdn. [15cents U.S.] and the other vent lights are easy to replace. What's the cure for this? Thanks in advance.