Hello!

We recently moved into a new office and It's my task to figure out how to set up the existing Crestron system. Unfortunately I'm completely clueless when it comes to Crestron. We'd like to be able to use the speakers in the ceiling but the Crestron panel on the wall does not turn on, and I have no idea where I input an audio source. There's also a board on the wall with a VGA cable coming out of it which I assume is where a TV used to be mounted, is that related? Some pictures are attached.

Any help would be greatly appreciated!!