Q: Does this cable also include the microphone? Thanks
A: Yes, this will include the microphone and the battery box, the full cord assembly.
Q: Can I change my non-Bluetooth Bose A20 Aviation Headset to Bluetooth capable Bose A20 Aviation Headset with this cable?
A: Yes, using this cable is exactly how you would change a non-Bluetooth Bose A20 Aviation Headset to a Bluetooth capable Bose A20 Aviation Headset.
Q: Is this the updated (as of 2015) version that will allow music over bluetooth?
A: Yes, this is the newest model that allows streaming Bluetooth music.
Q: I have the a20 non Bluetooth set if I get a Bluetooth cable and put it on well they have Bluetooth?
A: Yes, you can convert your non-Bluetooth A20 to a Bluetooth enabled headset with this cable assembly.