[RPS328ix]

I know there are a lot of posts about Bluetooth streaming on here, but I can't find any that address my problem. I apologize if this issue has already been addressed, and please feel free to point me to a prior post.

The problem is that, every few days, the setting in iDrive that allows Bluetooth audio streaming is defaulting to the unchecked or off position. The Bluetooth connection to my phone is fine and phone calls work over Bluetooth as usual, but not audio streaming. Before I can stream audio again I have to go into the iDrive settings for my phone and check the box for "audio" to enable streaming -- it then works perfectly for the rest of the day and maybe even for a day or two after that. But, inevitably, it will stop working and I have to go back into the iDrive settings and check the "audio" box again. I can't understand why that box keeps getting unchecked for no apparent reason.

I have an iPhone 5 running iOS 7. My car is a 2013 328i with current software.

Thanks in advance for any suggestions.