I agree. This is a disaster! I used to be able to flick the control center and then choose where to direct the sound, whether it be music, audio books, or video. I could choose AppleTV OR my stereo OR my car. Now, the phone will link up in my car but when I turn the engine off, the phone remains linked to the car. If I'm on the phone, I lose my connection when the engine goes off. If I'm listening to a book on tape, that's gone too. There's no way to tell the phone to switch from car > iPhone, or from iPhone > Stereo speakers. The only thing iOS 10 will allow me to do consistently is mirror up to Apple TV, an option I virtually NEVER USE!!! What's up with that? It all integrated so well before. Now, it's a major hassle. I'm glad I didn't download iOS 10 to my iPad or computer--then I'd really be sunk! Apple, PLEASE RESTORE THE PREVIOUS VERSION OF AIRPLAY. This one is simply not flexible enough for most purposes.