AUDIO SETTINGS FOR SKULL AND CO AUDIOBOX ON XBOX

hey, so I've recently bought a skull and co audio box as i heard it would work on Bluetooth speakers from one person on another thread a few years ago.

so I've got the controller, the audio box, and the Bluetooth speaker. the speaker connects fine to the audiobox, but theres no audio coming from it.

i thought that maybe it was because i didn't plug in the built in USB to the console, just done so and nothing.

tried out other audio settings and tried the headset mixer bar to see if anything happened, but no.

wondering if anyone has got a audiobox and has connected it to a Bluetooth speaker and wanting to know if its a settings, audiobox or speaker problem because i feel like it should work no problem.