Where have all the car radios gone?

[boater sam]

Thanks, but far too complicated for a tractor, doesn't want bluetooth or usb.

What is a head unit? Does this imply that its not a complete radio but just the control panel?  I'm too old for all this jargon.

Even stereo is not required. Certainly not cassette in an agricultural vehicle.  Even CD would be worth considering.

Is there not a simple radio anymore?  A bit or mono FM?

 I would buy him an old one but there is nothing on Medium or Long waves really worth listening to.