My Terminator 2 cab is like this. Unfortunately, it's also using some kind of strange reflective paint on the rear of the mirror (it's actually a one-way mirror.. much of the paint has flaked off, meaning that from the front instead of seeing the reflected picture you see through the back of the cab instead!)
It also means the monitor is mounted vertical instead of horizontal, which is much harder to easily remove.
All in all, a bit of a pain!