I feel like the idiot in the room, and probably am...

My Nav unit says SW4-1/50, I'm having trouble getting my arms around whether v32 is more or less than 1/50.

Is there anything that makes the bluetooth that talks to the phone also talk to the music services that my phone has on it? I'd like to play Pandora, and others, from my phone through the audio system on my X5. I found an aux input jack and instructions on installing it, but since the system already uses bluetooth communications, then it seems logical to me that the system should be able to play music from the phone.