Where is the three minute mark in your presentation Slide 1 or slide XX Insert your sound file on the slide that you want it to start on and have it start when you click on something on that particular slide.

 Hello,

  I can not figure out how to make a song/sound start at a certain time.  
 I've done the thing where it says custom animation, effect, from time, but it
 just won't work.  I'm trying to make a song start at the 3 minute mark
 instead of right from the beginning & I've tried everything it seems like -
 but no avail!

 Someone, please help me!

 Thank you!

Keep starting "From the beginning"
Double-click on the effect in the animation pane and put 180 seconds as
Delay then press OK