I'm assuming you would like to output audio from the Wave to the S1 Pro. I had a Wave system -- still have one of the bigger units. Most of the audio connections of the Wave are for connecting devices TO it where the Wave is the output. Sounds like you want the Wave to be the input. The only thing I can think of is maybe using the headphone jack on the Wave (which is a 3.5mm connector) and using a cable to connect to the S1 Pro "AUX" input. I think once you connect a cable to the headphone jack the Wave's speakers are muted. All you need is a relatively inexpensive male-to-male 3.5mm stereo audio cable to find out if this works.