Need something to transmit audio from my receiver as Bluetooth audio
So, I have an Onkyo 7.1 receiver that's a few years old, doesn't have WiFi, Bluetooth, or ARC. I also have an LG 47LM7600, with all of my sources going into it via HDMI. From the TV, I have an optical audio cable going into the receiver. This TV supports passing Dolby 5.1 from the HDMI sources into the optical audio output, which is feeding my receiver. This is my setup now.
I just got one of those fancy home theater recliners that have built in speakers and a subwoofer (which I actually didn't even realize when I bought the thing...go figure). There are no audio inputs on it, it's only done wirelessly through Bluetooth. I connected my phone to it (the chair acts as a bluetooth headset), and it sounds fairly decent.
My end goal is to somehow find a device that will let me transmit the output of the Onkyo to Bluetooth, so I can run the audio to my chair. Does such a device exist? When I connected my phone to the chair, I did have to input a standard 0000 passkey on my phone to do it, so I'm thinking whatever mythical device can do this for me needs to be able to find a bluetooth headset and connect to it via a passkey.
Anyone have any ideas? Thank you.