Newbie with OnTriggerEnter & Audio Files

Ok, so basically I am trying to figure out how to get an object to play a sound overtime someone gets near it. I tried several videos and they all say to use "audio.play", but in Unity 5 that is no longer correct. So here is what I'm using and it seems to fail and I'm to much of a new to figure it out on my own.

 #pragma strict
 var soundFile:AudioClip;
  
 function OnTriggerEnter(trigger:Collider) {
     GetComponent.<AudioSource>(soundFile);
 }

Any ideas what I'm doing wrong. I'm sure it's obvious, but I'm still learning, lol.