RedCal
2500 Posts Club!
Look at the LG phones G7, etc... removable micro SD card and a good DAC
or others GSMArena.com - mobile phone reviews, news, specifications and more...
Android Auto will not control a USB stick, or HDD, If you can't get a phone with expandable storage a good Streaming service is what you need, there are a few that work with Android Auto (Tidal is my go to) or failing that... get a small tablet to run the audio... all that I have seen still have SD card slots
or others GSMArena.com - mobile phone reviews, news, specifications and more...
Android Auto will not control a USB stick, or HDD, If you can't get a phone with expandable storage a good Streaming service is what you need, there are a few that work with Android Auto (Tidal is my go to) or failing that... get a small tablet to run the audio... all that I have seen still have SD card slots

