Thanks both. It does indeed sound like an issue with the interface between iOS and the car, although admittedly Amazon Music isn’t great. I only have it as it’s free with Amazon Prime
. I just looked to see if I could connect the phone to the USB socket, but it’s a different type of USB socket to the type that charges the phone. I admit that I’ve not tried to hard to understand the world of digital music, so it’s all a bit bewildering to me, hence my yearning for an in-car CD player. I’m sure that there are millions of older drivers in the same boat. Nowadays it’s digital or nothing, which would be fine if it was dead easy and worked every time
. I just looked to see if I could connect the phone to the USB socket, but it’s a different type of USB socket to the type that charges the phone. I admit that I’ve not tried to hard to understand the world of digital music, so it’s all a bit bewildering to me, hence my yearning for an in-car CD player. I’m sure that there are millions of older drivers in the same boat. Nowadays it’s digital or nothing, which would be fine if it was dead easy and worked every time 
I forgot Apple were beyind the curve with slower USB lightning cables and needed a kick up the ass from the EU, but it may just pay off and save the headache if you spend a couple of quid annd get a USB C lightning cable or whatever they are 🙂