Thanks for the reply!

That's one of the things that people my age really dislike about Big Tech. You upgrade one thing (in this case, a car) and that means you have to upgrade something else or even everything else.

This iMac desktop I'm writing on, is on Mavericks with iTunes version 12.6.2, which is as high as it can go. I gloomily predict that if I try to update the iPod by connecting it to the iMac, I'd then get an electronic "computer says no" and an "invitation" to upgrade the iMac to upgrade the iTunes to upgrade the iPod to connect it to a CAR!

There is an easier way out of this electronic madhouse: downgrade the new car to a version (which I had up until last Friday) which is fully compliant with my old iPod. But even then I think I'll be scuppered with "new" USB connections or something like that. Meh.