How to play sounds on android through car radio?

Question

Android

Greetings!
Faced such a problem: I used to listen to music in the car through the iphone, all sounds were played through the car's speakers. Android allows you to listen to only the available music on your phone, i.e. no applications with radio, ringtone only on the phone and the like.
Maybe someone faced such a problem.
Radio pioneer mvh170ui
USB connection