Didn't know how else to describe this. Alexa was recently added to my iPhone through and update. I used to listen to books through my phone. I have Alexa and several Echos in my home. Now, however, Alexa will not allow me to listen to a book through my phone. I don't want it to do that. Quite frankly the sound quality is much better through my phone. How do I remove my phone from the "devices." Hope this makes sense but only way I know to describe it.