Wysłałem zapytanie do producenta programu i otrzymałem odpowiedź.
Z maila wynika ze nie da się z tym nic zrobić, przynajmniej na razie.
Hello,
Thank you for your feedback!
The problem is known to us. It exists on both HTC Touch Diamond and HTC Touch Pro because HTC did tight integration between AVRCP Bluetooth driver and their Touch Flo3D music player. The driver forcefully starts the TF3D player each time any command is received from Bluetooth headset. And the control events are sent directly to their player.
We have invested a lot of effort trying to develop some workaround for that issue, but did not find any really usable solution yet. We will continue our tries, but due to the closed nature of HTC's software we can't be sure if it is possible at all.