Can I use AUX cable for audio? Yes, to connect your devices using an AUX cable, there is an AUX input port present at the back of your SoundBox. Connect the device using a 3.5mm aux cable for audio. Related articles How can I change the audio source of my SoundBox? Can I play music using USB? How do I use HDMI ARC to connect to other devices eg SoundBox HD? Why can't I hear any sound from my SoundBox? How can I pair devices for Bluetooth audio? Comments 0 comments Article is closed for comments.