Unity Music Button App?

I am trying to create an augmented reality app using Unity, what I want to try and do is make stickers that act as image targets so when they are scanned and detected by a camera buttons appear that can be clicked to play different audio clips.

So far all I have managed to do it make it so when when the image target/sticker is detected an  audio clip automatically plays, but this is not exactly what I want to do!

any help would be great thanks!