Originally Posted by justajason
Enable the Audio Boost.
Enter the media app, click BB, and go to options.
Scroll down till you see the audio boost option, highlight, and save...
This should bring the Media audio up...
Even if this is enabled, I've notice that all 4.5 OS that I have tried have this issue. Oh well, hope RIM do something about it, not that it matters really, because majority of the time I listen to music using my headset all the time.