Why I can't install Android Auto on Nexus 5 Marshmallow?

[AC Question]

I am from a country not supported by Android Auto, I downloaded the APK for Android Auto, from apkmirror. I open the installer but I can't push the INSTALL button.

Do I need to install the app with the car connected to the phone? Or?

Thank you

 

[dpham00]

Mod Note, I will move this to the n5 forum for more visibility