You could just take the SIM card out and never connect it to wifi. Things like navigation can be done on-board (proven when in zero connectivity area), and pla

You could just take the SIM card out and never connect it to wifi. Things like navigation can be done on-board (proven when in zero connectivity area), and playing MP3s from a USB can replace spotify. No idea what it might start complaining about long term though when it can't talk to the backend for extended periods.