Here is the NAV display... the base is located underneath the back seats.... the antenna is located on the dash, on the front end of it in the corner on the passenger side.
I cannot get a picture of the back.. and I have no idea how the installer got it there... I just told him the spot... and he got it...
It does not move at all. No Shaking or anything..
As of now there is no other video running to the display.
You must also be careful about placement... as you dont want it TOO high, but not TOO low that it interferes with your Rear View Mirror.