Sim doesn’t link to car or show 4/5G

JoyKidd_4386032​ If you want to use apps on an iPhone, you really need to have CarPlay in the vehicle. Once the phone has paired up with the car, you should see your iPhone apps on the car's central screen. 

The phone will initially link via bluetooth and then data is transferred via wifi - this is where your plan data will be used to get the Spotify music.