Our daughter has a sectional couch outfit that has a corner unit which has Bluetooth speakers mounted in it. We can’t find any paperwork, and I’ve exhausted efforts to track down anything by manufacturer or seller. Underneath in the cabling I find two cables that are routed towards the Bluetooth On/Off/Vol module mounted on top of the unit. There is nothing coupled to these two and I suspect at least one supplies power to the controller by way of a wall wart supply. I’m guessing maybe it needs 5V DC…anyone suggest more? Thanks.