I havent listen to my radio in years. Whenever Im in the car I listen to audiobooks on Overdrive that I have downloaded from my local library. I have Overdrive on my iPhone 6S Plus and my iPad Air and it works great on both devices and will also sync between the devices. You can save your login information so that you can sign in from Overdrive right into your library without rekeying the barcode info. If you dont use iTunes to download the audio books or e-books (download directly to Overdrive), you can return them whenever youre finished.
Horse Called Man about OverDrive: eBooks & audiobooks, v3.5.4