I added a projector in my living room where I have a TV and Arc Ultra setup.  When using my projector I want to get sound to my arc and the only thing I can get to work is through an AV Receiver.  I have my projector to AV unit along with media devices and then using Bluetooth to connect to my Arc.  The issue I am having is volume limitations.  I have looked and searched for any answers as to why it is so quiet. 

Any help is greatly appreciated!