Android Auto plays sound through phone speakers

[timbo4]

Hey everyone,

I got a new car with android auto. At first I've been really excited to use the Android Auto technologie. Everything is working pretty good, except Spotify. I am able to connect it to the car and I do see the in-car GUI for Spotify at my cars screen but I'm not able to get the music through my cars speakers.

It always gives out it's sound through my Xperia Z3 Compact 's speakers. Also Spotify causes crashes of Android Auto after a few minutes.

Reinstalling Spotify or clearing app-data does not solve this issue, I've already tested it!

How can I solve this issues? I'm pretty disappointed with this, especially because Google Play Music is working pretty good!

Please help me!

-timbo