I have a custom 2013+ Altima 10.2 inch Android unit on 4.4.4. Unit seems to be based on RKPX3 and has 1024x600 resolution. I rooted it with Kingroot and kept stock firmware but don't like the stock Radio apk. Can anyone please link me to a different one so I can push it to system and see if I like it better? Any help will be great. Thanks.