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? Why can't I hear any sound from my SoundBox? How do I use HDMI ARC to connect to other devices eg SoundBox HD? How do I find an aerial installer? What type of connections are present on my device? Comments 0 comments Article is closed for comments.