Comand installation in 1995 Mazda Miata
I installed a Comand 2.0 from a Mercedes into my miata. The original US headunit is double Din, so the comand was almost a straight swap. I only had to make 2 brackets to mount the Comand in the opening and buy an adapter for the wiring. I installed a magnetic GPS antenna under the carpet on the back shelf. The antenna is very flat so it isn't visible.
The only thing I had to modify is the black plastic panel. The Comand is about 2mm wider than the stock unit so I had to remove a bit of the plastic. A few minutes with a dremel did the job.