How to get custom music on your Profile

I learnt how to make it so music automatically plays on your page (credit to https://layouts.spacehey.com/layout?id=36105 for the code) but it only played the already inputted song so I did some messing about and realised you can replace it with any Youtube video by changing the ID(the id is the part of the link between "embed" and the question mark) here's an example

<iframe width="0" height="0" src="https://www.youtube.com/embed/[Video ID]?autoplay=1&loop=1&playlist=[Video ID]" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" loading="lazy" data-ruffle-polyfilled="">

</iframe>

 Copy everything between "embed/" and the question mark from a youtube video and replace the blue highlighted parts of the above link with it (remove the brackets around the blue highlighted parts as well), it should allow you to make any song play on your profile automatically

Hope this helps :3 :3