Dec 1, 2018
Dec 5, 2016
Thanks for the post, and welcome to the community.
Looking at the projector online, it looks like the only audio output available is an analog audio out, which cannot be connected to the SoundTouch 300.
I would recommend that you connect whatever device you have (Blu Ray, Cable Box, etc) to the HDMI in on the SoundTouch 300, then HDMI out to one of the inputs on the projector.
Please let us know if you have any other questions.
Brandon - Community Support