Youtube Music Player

Hey, I'm trying to make a widget so that my members can add the widget, copy and paste their Youtube link to the widget and have it play on their profile. (Kinda like this,

But the problem is, is that this will be my first plugin I've ever made and I'm trying to get used to how Elgg codes. Do pretty much I want to make it so there's a box so that they can copy and paste their link in and then a select box to either make it autoplay or not.

And yes i know exist....