I have audio streaming set up thru max2play, and audio plays fine when I listen to it via the headphone socket, but the two red/white RCA sockets don’t work. I have tried connecting them to my amplifier, and then to my speakers, but there is no output at all, and I have tried the same RCA cables on a different device with the same setup (Device to amplifier to Speakers) and they output fine. How do I get the RCA sockets working on my justboom via max2play?