Is the iPhone 4S compatible with Airplay?
The iPhone 4S is compatible with Airplay as long as it is running iOS 5.1 or later.
I'm having trouble pairing the Audio Dock with my new iPhone 4S. I receive an error message after I enter the 0000 Passkey. I can still pair it fine with my iPad and wife's iPhone 4, so it definitely seems to be iPhone 4S related. Any ideas?
Please try the factory reset on the Audio Dock by holding down both buttons on the back of the unit at the same time for a few seconds. The Audio Dock will shut down and then power back on. See if you are able to pair after that. You may also try rebooting the iPhone to see if that helps. You should absolutely be able to pair to any Bluetooth capable device.