I have probably a stupid question, but can't figure it out. I use the Waze app on my iPhone for navigation. I have the settings on Waze to have the audio playback using the Bluetooth connection and my phone is connected via Bluetooth to my car. I recently noticed that if I plug my phone into the car USB port to charge the phone while driving I do not get any audio from the Waze app. If I disconnect the USB connection I get the audio. I tried changing the Entertainment selection to USB on the car while the phone is plugged in, but I still would get no audio from Waze. Any thoughts?