Hey, Waze. There seems to be a problem with IOS 9.1 on Iphone 5S for Version 4.0.1.1.
When Bluetooth is connected to car, and the voice directions override the radio, after the voice direction, the radio remains overridden and the Iphone starts to play from the Itunes library rather than going back to the radio. This is a pretty annoying bug because you have to switch back to the radio on the car. This did not happen prior to IOS 9--it would automatically switch back to the radio when the instruction finished.
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