In-Dash Nav Suggestions?

[czonin]

Hey everyone i'm back after a long break. After realizing that i'm going to be stuck with the coupe for awhile longer I figured that I might as well do some work to it. I'm looking to grab an in-dash nav for around $600, and preferably one that runs Android, but i'm open to anything. I know next to nothing about this kind of stuff so any help would be appreciated.