I have seen this on the outside and it was due to over spray from sunscreen or insect spray. There is a chemical reaction that happens plastic/spray that will do it as well as leave little craters in the screen sometimes.
I had a guy with over spray in one of my past boats that got on the engine and pretty much made it have a 1000 spots.
Not sure if yours and mine were the same.
If not then just a heads up on sprays and their effects on stuff. Be careful where the over spray lands. No way would I put that on my skin after seeing what it does to plastic. LOL
Edited by Lake Fork Guide Marc Mitchell (08/22/1704:05 PM)