The display is mounted from the back of the dash. You will need to remove all of the screws around the "doghouse" base area, then all the screws in the face area of the dash. I think you may have to remove the cover around the steering wheel column base to access some of the dash screws. Just carefully try to lift the dash cover up to see if you missed some screws. The dash face needs to be pulled forward to access the two screws in the rear of the display. I think I had to unplug the cigarette lighter to allow the dash to come forward. Just take your time, lay the screws in a pattern for replacement. The instuctions tell you to do something about the display, I just made sure all the power was off, unplugged the old display and plugged in the new one. You will now be able to read the display even with dark sun glasses on! It was probably about an hour or two max, well worth it, just take your time, and don't use any excesive force, it comes apart fairly easy,
"Time is Nature's way of not letting everything happen at once."
2015 Itasca Meridian 40R