destroy on trigger exit

Unity Engine
1

i want to add an audio jumpscare to my game, I know I have to add something in the if statement but don’t know what.heres what i’ve come up with so far: please read under script too

#pragma strict

var soundClip:AudioClip;

function OnTriggerEnter(o:Collider)
{
	Debug.Log("The trigger played");
	
	audio.PlayOneShot(soundClip);
}
function OnTriggerExit(o:Collider)
{
	Debug.Log("trigger deleted");
if  (something like if trigger exit)
	
	Destroy(GameObject);
}

I need it to play for 3 seconds and to be destroyed on trigger exit

2

before you destroy, use/yield WaitForSeconds.