AutoPlay no Youtube

Código sem auto-play:

<object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/WQngHx86qVc"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/WQngHx86qVc" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>

O mesmo código com auto-play

<object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/WQngHx86qVc&autoplay=1"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/WQngHx86qVc&autoplay=1" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>

* Observe que foi adicionado &autoplay=1 no final dos 2 links
* Os links sempre serão na parte aonde diz value="link" e no final do link antes de fechar aspas adicione &autoplay=1