Radio Implementation Issue

Unity Engine
1

You can safely ignore non-Bold text.

Hello, Unity Forums.

I just started making Games with Unity3D a few days ago, and i have had huge amounts of fun, thanks to the forums and the documentation i was able to resolve all my problems, but now i have reached a point where i cant find a fitting answer, nor can i figure it out myself.

So, im working on an FPS/Sandbox game in 3D, for the sandbox part you can summon different prefabs, that i created beforehand.

I am using Unity3D non premium edition,
and i am scripting in C#

Thats the basics. The problem i ran into, was the Following:

  • I add some Tunes to my Radio Script, tunes Array

  • I summon my radio prefab, add a slight bit of velocity to it, all fine

But then, for some reason, there is a about 90% chance no tune will be played ( Unexpected behaviour!) Just to clarify this, All of the slots of my array are being used.
So, i hope the Problem is clear now, please tell me if i should do anything to improve my posts further, here is the script, i wrote.(C#)

using UnityEngine; //sorry, Indents decided to go rogue.
using System.Collections;

public class RadioPlayer:MonoBehaviour{

 public AudioClip[] tune;
 AudioSource radio;
 IEnumerator Start()
 {
 if(tune.Length>0)
 {
do
 {
 radio.clip=tune[Random.Range(0,tune.Length-1)];
 yield return new WaitForSeconds(radio.clip.length);
 radio.Play();
 }
while(gameObject); //probably unnessecary, but someone told that me this was good.

 }
 }
 }
2

What simply triggering each new track once the previous one has ended?

int trackIndex = 0;

void Start()
{
        charController = GetComponent<CharacterController>();
        audioSource = GetComponent<AudioSource>();
        Invoke("PlayTrack", 0f);
}

void PlayTrack()
{
        audioSource.clip = clips[trackIndex];
        audioSource.Play();
        Invoke("PlayTrack", clips[trackIndex].length);
        trackIndex = trackIndex > 7 ? 0 : trackIndex + 1;
}