[Bluetooth] Transmit Tag to headunit

[D-Fence]

I am running Poweramp on a Desire HD in my car, the phone is connected via Bluetooth to a JVC KD R 711 headunit. Streaming to it, resume on connect, selecting next/prev song via headunit works flawlessly, the only thing it can't do is display the name of the current song. The headunit theoretically is able to do it, the question is, is it limited by the phone or by Poweramp, if Poweramp is the problem, can we hope for an implementation of that feature? That would surely be a nice thing to have