Mum’s car, being 21 years old, lacks a bit in the entertainment department. It has an AM/FM radio & cassette unit. In the glovebox there’s a tape-shaped audio in device that plugs into the headphone port of a portable audio device. The signal gets converted into a magnetic form aimed at the cassette deck’s playing head.
I can use the iPod Touch or the old MiniDisc player/recorder as the music source.
I had a spare mobile phone mounting bracket so that’s been fitted and the iPhone hooks up to a visor-mounted Bluetooth hands-free unit.
I put the iPhone into Do Not Disturb while driving enabled and use the Bluetooth device to do the enabling. That’s quite satisfactory.