Their are usb-c to jack adapter, some allowing usb-c passthrough for charging, otherr being full blown otg cable with usb-c, usb-a and TRS (the real name for ja

Their are usb-c to jack adapter, some allowing usb-c passthrough for charging, otherr being full blown otg cable with usb-c, usb-a and TRS (the real name for jack). You would leave it attached on the cable that stay attached to your car and you would be fine. Also, there are wired usb-c headphones, my partner is using one.