Hi, I'm using a bluetooth transmitter to play the audio from my TV to my headphones. The BT transmitter is connected to my TV using the L and R audio (white/red) RCA cable. The cable is then connected to the transmitter and the transmitter is connected into my TV's USB port. However, I can only get the audio to play in mono mode with my bluetooth headphones. Same thing happens on my computer if I plug the BT transmitter using the 3.5mm audio jack. When I just use my headphones without the transmitter, every plays in stereo mode. Can someone let me know what the issue could be? Or if there even is an issue? Thanks.