I currently have a xiaomi radio receiver in the car, which connects via blue tooth.
I want to buy a cheap device that connects to it via blueooth to play podcasts in the car. My current smartphone is on google maps which I keep on all the time so dont want to touch.
Other points - If it is a smartphone I may be fined under road rules for using a mobile device.
I have also used an audio plug in to the car radio before but find the reception is bad when the cord moves,
An older iPod? They're apparently one of the best for podcasts.