I have a custom theme I'm trying get auto embedding YouTube links to work on. They work fine as listed in http://codex.wordpress.org/Embeds by placing the URL on a single line with space above and below, but that's not what I want to do. Is there a function I can grab or some other snippet of code so that I can place this elsewhere in my custom theme? Ideally I'd like to create a little sidebar widget and when the user enters their YouTube link into a custom field I've setup (my_custom_video_field), I'd like it to work as if it was in the regular position. Is this possible? Thank you!