scheer72 will you leave the code in there?
YOur API Key is correct it is working fine now
I added also code for featured videos module in the home page
<div class="videoWrapper">
<!-- Copy & Pasted from YouTube -->
<iframe width="560" height="315" src="https://www.youtube.com/embed/Spel7vfkpNc?rel=0&controls=0&showinfo=0" frameborder="0" allowfullscreen></iframe>
</div>
As i mentioned above since it is a custom module you will need to have your default editor disabled from Global configuration to correctly see that code
After you saved it then you can enable again your preferred editor.