Music selection

I have arc running on my android auto. As long as my intel nuck stays up i have a great connection to my truck.
I like the higher quality streaming compared to tidal - android phone - Bluetooth to android auto.

My question is i dont understood how to add music to arc. I have roon and it works great at home . I dont know how to move albums to my arc server. Like adding a play list.
Ultimately I want to stream high def music from my tidal app to my truck.
I have a tidal account on my phone that i can Bluetooth to my android auto but the quality is wrecked going through my phone.
Every Playlist thats on my core server is awesome. I assume its because im going straight from my roon server over cellular straight to the arc app on my android auto. Bypassing the crappy Bluetooth converter on my phone.