When using turn by turn directions in iMaps, my iphone 5S used to break into what ever I had on my radio to give me directions. It would also be heard through the car speakers when the radio was off. Now, my iPhone 6 can only be heard if the radio is on and tuned to bluetooth mode. I can't find the setting to turn HFP on (I think it was were the voice control setting -iPhone or handsfree- on the old phone). Does anyone know where it is on the new phone/iOS? Thanks.