So i was in walmart, i saw this little device for $24.80 called the ilive bluetooth reciever. I was skeptical of it,. but its works perfectly for me,
I have a blackberry 9930 my x5 has the oem bluetooth. I connect this little adapter to any input in my x5. _ i have multiple aux inputs since i have the grom audio usb device and OEM dvd player. back to story the little device turns that audio input into a bluetooth streaming device. I can now stream pandora or my music from my telephone via bluetooth in my 06 x5 non nav system.
it uses a micro usb to charge. battery on box says 2.5 hours. I have not confirmed it yet. I also can confirm while the music was streaming a few calls came in. it muted pandora and the oem bluetooth then took over. that was the part that shocked me. I hit the r/t button just to verify my phone book was still loaded and it was. when the call ended my pandora music came back on..

$24.80 for bluetooth streaming in my truck. I'm a happy camper. ilive model IAB13B bluetooth receiver and adapter.
this thing is small too about the same size as 2 sd memory cards put side by sideWith the grom streaming unit i have to run a microphone and lose my
additional aux input. 1 power button, 1 pair button, 2 LEDs 1 mico usb charger slot 1 line out heaphone jack.
With the i live no microphone to run as its only purpose is to stream the music. (AD2P) My OEM bluetooth handles the phone calls.
it connects via a headphone lineout cord to an aux input. also tried it in my house to stream music to my stereo i put and headphone to rca jack cable on it and it worked perfectly. Im a post some pics later on. but if you google it amazon and a few stores had it cheaper than wally world.