To hear FM radio, you don't need to plug in a headset, just the 3.5 mm headset adapter cord. That can serve as an antenna by itself (Turn the speaker on in the FM Radio Menu).

So possibly, this leaves the Radio open to a hack for those who want to hear the audio in a BT headset. Redirect the output sent to the audio speakers to a BT port (don't know too much about BT).

Jim Lewis