Easy, Cheap Bluetooth Streaming Solution!
Here's a really easy solution to the lack of bluetooth streaming on the X6. It's cheap and easy to do. A company called Monoprice (monoprice.com) sells bluetooth streaming devices. I found this last year when I was looking for a streaming solution for my 2009 CTS. I figured the same fix would work for the X6. I was right. I have a 2011 X6 and an iPhone 5. The music receiver comes with instructions for pairing your phone.
Here are the components to order:
7364 Bluetooth™ Music Receiver $19.47
5441 1.5ft USB 2.0 A Male to A Male 28/24AWG Cable (Gold Plated) $0.90
5575 1.5ft Premium 3.5mm Stereo Male to 3.5mm Stereo Male 22AWG Cable (Gold Plated) - Black $1.50
Here's a picture of the install on my X6. Quick, easy, and it works!