New S24 Plus overheats on bluetooth in the car

[oakland_Mike]

I have a brand new S24 Plus. When I get in the car and connect to bluetooth, the phone heats up rapidly to where it's obviously hot to the touch.

I hook it up to bluetooth pretty much only to listen to Apple Music through the car's audio system (not Android Auto).

I have tested the phone at home, connecting via bluetooth to my audio system and playing through Apple Music. No problems, no overheating.

EDIT: Now I have discovered that it also heats up when I'm using the phone. (And not only when I'm in the car.)

Any ideas? Do I maybe have a faulty unit?