Just replaced my flip down monitor with an Xtrons jobbie. The Xtrons unit does not have internal speakers, it has the normal Audio out cables or a Fm transmitter for the audio and I would rather not use either of them as I have would need the radio on. The monitor has 2 ports HDMI that will be used with a fire stick and a USB port, the question is would I be able to utilise the USB with a soundbar to get Audio?