Or you can get it installed from bestbuy. It cost me $300 last time, installation was free.
If you’re talking about a head unit replacement that get’s difficuld nowadays since they aren’t just Double-DIN and there are vehicle.settings managed in there.
Looks like to do that for mine is about $800-1500 DIY
You can buy just a screen that is basically a tablet for CarPlay and android auto. It connects to your existing system via Bluetooth and to your phone via WiFi. Then it arranges the Bluetooth connection between your phone and the stock system.
If my car lacked CarPlay, this is likely what I”d use, and mount it over or above the stock head unit.