Broken 0.1 uF capacitor - could the Audio Adaptor Board work without it?

[Squirrelwolf]

I managed to accidentally crush one component to pieces with pliers when installing the Audio Adaptor Board for Teensy to my Teensy 3.5 board. It's the 0.1 uF capacitor that's connected between PIN 15 and AGND. (It's circled in the photo that's visible in the link below.)

Is this component necessary for the board to work? If I understand this post correctly, it might not be? If it is absolutely necessary, what kind of a replacement component should I get?

Apologies for my limited electronics knowledge!

 

[Neutronned]

If it's the capacitor connected to pin 15, that's filtering the optional volume control analog input. If you're not using that, then you should be good.