Not sure if anyone noticed but bluetooth music streaming is completely dead on BMW cars. I tried this on my car 14' 435xi coupe, and also a new-ish 16' 535xi and after about 30 seconds of music streaming - the song stops and reverts the iDrive menu to the connection screen of the iphone. If you tap on your phone it will connect and resume. Extremely annoying!. But, a beta, is a beta afterall.