I prefer to use the lens cloths (made of material thatfeels like silk)that Walmart carries in their optical department the opticalspray cleaner works well too and it wont crack or remove any coatings.
I dust first very lightly with a swifferthen dampen a bit of the cloth then wipe. I know I dont have nav but I have 4 LCD monitors which are essentially the same. It removes any greasy fingerprints easy.

Other than that 303 is better than armorall.

 

Those lens cloths are usually microfiber, just a very short nap

I was very impressed with 303..it make the plastic trim darker without being too shiny (after a second buffing with a cloth a day later) Einszett/1Z makes one that is even less shiny

 

You might be surprised how well water and microfiber work on dashboards. I am totally against making my dash slippery or shiny, so all I've ever used on my other car is water. Still looks perfect after 4 years.

 

Heres a nice little write up I dug up from the detailing forums, its got some neat info there. https://mitsubishiforum.com/m_23897/tm.htm