I want to link my phone to a Pioneer DDJ400 dj controller. My tablet works fine, as it has a separate audio port (which i dont need to use as the audio comes from the dj controller outputs) My S20, however, uses the same port for charging/data/audio. When i link it up to the DDJ400 i get the music with a background buzz. I assume because audio is being transmitted as well as data. Is there a way to turn off the audio output?