I spent some hours testing files responsible for BT audio streaming from TeamEOS CM10 builds (the feature works there) on the official CM10 nightly builds.
Finally after couple of the ROM re flashes I found what file can be transfered from the Tea...
I think he meant to copy it from the firmware file, you can browse it with winrar on a PC or with android rar/zip apk directly on your mobile.
for the BT on tf201 and ART (I haven't tested the dalvik) just switch the BT off, wait a while as it take a time, lock the tablet and unlock (you can also wait for the BT to be off while locked). After unlock you should be able to switch the BT ...
Is it possible to have a "BACK" button to kill apps like in other CM versions?