Matt, Page one has a video that may help show you how to pop yours out. Provided yours is like the one featured.
IDEA: Has anyone considered relocating the mic lower to a different location in the car that would be further away from the sheet metal (Roof) of the car? I disconnected the mic when I dropped my overhead console and it doesn't look but to be a few wires that could easily be lengthened. The question would be were though to relocate the mic. Hmmm..