Recently had a problem with Bluetooth connection and playing music from USB.
First noticed music would not play from USB then noticed I could not make or receive calls via Bluetooth.
Found a remedy which suggested removing one terminal of the battery and then reconnect.
I used an alternative method by removing the two fuses for the audio system labeled "audio1 and audio2".
Once the two fuses were replaced I could once again reconnect both the Bluetooth and USB media.