If you are planning to buy a new car sereo and confused about this. Let me help you, you have two options :
single Din Stereo and a Doublr Din stereo
I prefer a Double Din Stereo. NOw in a Double Din Stereo, you again have two options :
Android Car Stereo
Apple CarPlay Stereo
Android Car Stereo is a better choice and you can use use all the features of your Android Mobile phone on your car stereo. You have to install an app nown as ANdroid Auto and thats it.
Connect your phone with the car stereo and boom.
Thank you