How to play audio on a media plate

I’ve been struggling for the last week or so with the Media Plate in UE 5.3. I’ve managed to get my video to play back properly without any problems at all, however no matter what I try, or how I approach it, I just can’t get the audio to play when I simulate the level.

I’ve managed to get sound from a standard plane actor, by adding the MediaSoundComponent to it and adding the media player to it as the source, however when I check “enable audio” on the Media Plate, and then do the same thing under Sound Component → Media → Media Player, nothing happens.

I suppose I could be missing the obvious, but if it was obvious, why haven’t I found it?

Thanks for the help!