For my SpaceHey profile layout, I'm trying to adapt the original source of an old WindowsXP theme for my own uses. Here's that old source to start:

<style>@import url('https://cory.anota.do/spacehey/windows_xp.css');.hideobj{ visibility: hidden; height: 20px; width: 0%; }</style><iframe src="https://www.youtube.com/embed/7nQ2oiVqKHw?&amp;;autoplay=1" frameborder="0" class="hideobj"></iframe>

<style>@import url('https://cory.anota.do/spacehey/windows_xp.css');.hideobj{ visibility: hidden; height: 20px; width: 0%; }</style><iframe src="https://soundcloud.com/chordoslut/windowsiowa?&amp;;autoplay=1" frameborder="0" class="hideobj"></iframe>

First, I would like to know how to replace the youtube embed (intended to autoplay the Windows startup sound upon loading the page) with my own hosted .mp3 file (https://softwarehistory.neocities.org/audio/windowsiowa.mp3) that autoplays.