Playing Audio script?

Help me guys i need a script that replays a .mwv or mp3 audio file but waits a few seconds before the replay. Does any body knows how to make that possible?   

Try the following C# code:
using UnityEngine;
using System.Collections;

public class Audio : MonoBehaviour {

// Use this for initialization
void Start () {
StartCoroutine (PlayAudio ());

}

IEnumerator PlayAudio(){
while(true){
yield return new WaitForSeconds (3f);
audio.Play ();
}
}
}