A:AnswerThese are plenty loud for listening to music or watching a movie when you are in a bedroom and only a few feet from them. For an outside movie night you are probably going to want something larger.
A:AnswerYes --- IF you add a Prozor DAC001 Digital SPDIF Optical to Analog Audio Converter (includes Toslink cable, and USB/A to DC 5V cable). If you don't already have one, you will also need an audio cable with 3.5 mm connectors at each end.
I have used this to send audio from my Samsung smart TV to these speakers.
A:AnswerDear JBVFW;
Okay, it could work, as long as you have the correct "green" plug connector on the SiriusXM device. My gut level says, "Yes." Check it out. Go for it.
Good luck,
Consultant Brian