You can stream iHeart Country Australia on RadioApp on your iPhone or Android device, including Apple CarPlay and Android Auto.

You can also listen on your smart speaker:

To listen on your Google speaker, all you need to say is “OK Google, play iHeart Country Australia”
To listen on your Alexa speaker, all you need to say is “Alexa, play iHeart Country Australia”
You can also listen on your Sonos speaker using RadioApp.