Activating Animation and Audio using GetKeyDown

Hello there,
I have a previous code that uses a simple OnTriggerEnter function to activate the animation and audio, it works correctly, however when I add the && Input.GetKeyDown function nothing happens when I press the key. Can anyone help?

var VoiceSound : AudioClip;
var TapeRecorder : GameObject;

function OnTriggerEnter(col: Collider)
	if (col.gameObject.tag == "Player" && Input.GetKeyDown(KeyCode.E))
		AudioSource.PlayClipAtPoint(VoiceSound, transform.position);

try using
OnTriggerStay instead on OnTriggerEnter.

OnTriggerEnter only calls at the moment collision is detected between a collider and a trigger, and make sure to have a rigidbody component attached to the object the trigger is going to collide with.