Pause/stop a youtube video

It seems this question has been asked before with no definitive solution, so I thought I'd try my luck.

Here's how the video is embedded on compositionReady:

var youtubevid = $("<iframe/>");

sym.getSymbol("intro2").$("videoContainer").append(youtubevid);

youtubevid.attr('type','text/html');

youtubevid.attr('width','387');

youtubevid.attr('height','218');

youtubevid.attr('src','http://www.youtube.com/embed/qHxn1_2KfCU?enablejsapi=1');  // url/Video_Id

youtubevid.attr('frameborder','0');       // 1 | 0

youtubevid.attr('allowfullscreen','0');   // 1 | 0

I understand that in order to play/pause/stop a youtube video, you have to go through the API:

https://developers.google.com/youtube/iframe_api_reference#Functions

It looks like the function I would want to use here is:

player.pauseVideo();

So here are the two methods I've tried with no success:

youtubevid.pauseVideo();

sym.getSymbol("intro2").$("videoContainer").youtubevid.pauseVideo();

Any suggestions? Thank you.