My girlfriend has it even worse, her car only has AUX, no Bluetooth. I got her a Pixel 8 for Christmas, so she’ll lose the only way to put music in her car. I also don’t know what I’ll be doing about that.
They make AUX to USB C adapters. They even have ones that will split off an AUX input so you can charge your phone and have AUX plugged in at the same time.