Ok, I'm looking to build a radio for my vehicle. I was already looking at the Ras Pi 3, the hifiberry pro, a 7" monitor and a shell. I'm kinda new to this though. I know I'd get Bluetooth and wifi with the Pi 3 and the hifi will give me optical out that I want. I'd like to be able to have GPS, Radio, USB music playback. I've seen the Adafruit Ultimate GPS hat, but it doesn't look like it is compatible with the Pi3.
So what all do I need to do this? Thanks for the help