I am wanting to get a screen for the boat that its only real function needs to be running google maps or OnX if that is even possible. I don't care about fish finding or even depth finding. I just want to have a quality screen running a map with gps feature. Is this even a thing? Right now, I just hold my phone and drive in the night, but I am kind of getting tired of that. Or some sort of screen that I can hook my phone into to see it larger on the boat dash. Any ideas?