I guess this will be similar to the mounts used in my Supra. It was a little awkward fitting the sled - I had to drill out the adjustment slots in the side plates, allowing them to move further apart. I also had to cut out the dash surround a little, because of the annoying ISO security system that Toyota seem to have standardised on.

It didn't take much time and you can't tell that there has been any rework, but if I ever had to refit the factory radio I would need to get a DIN surround (as used in cars which do not have the ISO security overlap).

Rob