So I noticed a lot of finger prints on my HU display and used a little water and a microfiber cloth to try to clean it off, but you can still clearly see marks on the frequently touched area. I'm not sure if the display is a glass or plastic screen. If it were glass I don't think the marks would have stayed on it after I wiped it down. What are some products I can use to clean the screen more thoroughly without ruining it or should I just put in a little more elbow grease with the water and cloth? I do have some glasses cleaning liquid in a spray bottle if you guys think that would work.