Play a sound of the user's choice without modifying code

Will it be possible for the end user to be able to select the audio file that he wants to be played through a user message without having to enter the programming? I think this is important because the audio to be played that we sometimes place inside the Macro does not necessarily have it on the cell phone and it would be good if as part of the end user configuration, select your audio file and the macro play it without modifying code .
 
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