Get sound from remote desktop with no audio-output


I have a remote pc which i run my remote telescope with. The pc is not connected to any screen, mouse, keyboard or audio-output and i use it solely through teamviewer and a mobile access point. The software uses audio for alerts but i don't have a output on that pc to sent it to and therefore i don't get any sound through teamviewer. Is there any way of fixing this without downloading some sort of mixing software? (as i want as few programs running in the background as possible)