It shows the title and all the stuff on the screen but when I press play it’s playing through the phone….I’m at a loss.

 

That's odd. The audio output should automatically switch. iOS doesn't really give control over music audio routing, but you can manually switch the audio output via the Control Center. There's also a setting under Accessability -> Touch -> Call Audio Routing where you can control the routing of voice calls. It's normally set to Automatic and shouldn't affect music, only calls and Facetime.

 

This happens to me periodically as well. I suspect the car’s cpu is overloaded for whatever reason during pairing and/or media changes. I was able to fix it by changing the center instrument screen to media then pressing down on the left steering black button and selecting iPhone. It should switch from iPhone speaker to car audio.

 

I got it fixed, I just had to restart my iPhone apparently....duh.

 

That works too but if it happens again do the steps I mentioned above.