help connecting a player button to an audio stream

greetings hive mind, and thank you in advance.

I've created a player page for our audio stream @ https://teupoko.squarespace.com/reo
The player button is animated with css.
the css and html in the page are as follows.

I already have a script already in the footer of the page that has a play/pause button in the navigation bar of the home page -  https://teupoko.squarespace.com

I want to replace the button in the middle of the animation on https://teupoko.squarespace.com/reo
with the same button that appears on the navigation bar in the main page https://teupoko.squarespace.com

could I do that by editing the id and/or class somewhere in the code?

The script and code for the navigation bar play button are at the bottom.


___CSS___ for the animated play button https://teupoko.squarespace.com/reo

/* animate audio play button */

body {
  background: #444;
}

.play-btn {
  width: 100px;
  height: 100px;
  background: radial-gradient( rgba(0, 142, 233, 0.53) 60%, rgba(0, 142, 233, 0.53) 62%);
  border-radius: 50%;
  position: relative;
  display: block;
  margin: 100px auto;
  box-shadow: 0px 0px 25px 3px rgba(255, 255, 255, 0.8);
}

/* triangle */
.play-btn::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-40%) translateY(-50%);
  transform-origin: center center;
  width: 0;
  height: 0;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 25px solid #fff;
  z-index: 100;
  -webkit-transition: all 400ms cubic-bezier(0.55, 0.055, 0.675, 0.19);
  transition: all 400ms cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

/* pulse wave */
.play-btn:before {
  content: "";
  position: absolute;
  width: 150%;
  height: 150%;
  -webkit-animation-delay: 0s;
  animation-delay: 0s;
  -webkit-animation: pulsate1 2s;
  animation: pulsate1 2s;
  -webkit-animation-direction: forwards;
  animation-direction: forwards;
  -webkit-animation-iteration-count: infinite;
  animation-iteration-count: infinite;
  -webkit-animation-timing-function: steps;
  animation-timing-function: steps;
  opacity: 1;
  border-radius: 50%;
  border: 5px solid rgba(255, 255, 255, 0.53);
  top: -30%;
  left: -30%;
  background: rgba(255, 255, 255, 0.53);
}

@-webkit-keyframes pulsate1 {
  0% {
    -webkit-transform: scale(0.6);
    transform: scale(0.6);
    opacity: 1;
    box-shadow: inset 0px 0px 25px 3px rgba(255, 142, 233, 0.53), 0px 0px 25px 10px rgba(0, 142, 233, 0.53);
  }
  100% {
    -webkit-transform: scale(1);
    transform: scale(1);
    opacity: 0;
    box-shadow: none;

  }
}

@keyframes pulsate1 {
  0% {
    -webkit-transform: scale(0.6);
    transform: scale(0.6);
    opacity: 1;
    box-shadow: inset 0px 0px 25px 3px rgba(255, 255, 255, 0.53), 0px 0px 25px 10px rgba(255, 255, 255, 0.53);
  }
  100% {
    -webkit-transform: scale(1, 1);
    transform: scale(1);
    opacity: 0;
    box-shadow: none;

  }
}

___HTML___ for the play button @ https://teupoko.squarespace.com/reo

<a class="play-btn" href="#"></a>


___SCRIPT___ for the navigation bar play pause button on https://teupoko.squarespace.com. The script is in the footer of the page which is hidden from view

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.6.3/css/font-awesome.min.css"/>
<script>
  $(document).ready(function() { 
  // audio icon 
  $('<a id="play-pause-button" class="fa fa-play"></a>').appendTo('.header-actions--right .header-actions-action');
    });
</script>
<script>
$(document).ready(() => {
    var audio = new Audio("https://icast1.streamcom.net/TeUpoko");
    audio.onended = function() {
        const list = document.querySelectorAll('#play-pause-button');
        for (let i=0; i<list.length; i++) {
            $(list[i]).removeClass('fa-pause');
            $(list[i]).addClass('fa-play');
        }
    };
         
    window.addEventListener('mousedown', (e) => {
        const btn = e.target
        if (btn.id === 'play-pause-button') {
            console.log(3534);
            if($(btn).hasClass('fa-play'))
               {
                 $(btn).removeClass('fa-play');
                 $(btn).addClass('fa-pause');
                 audio.play();
               }
            else
               {
                 $(btn).removeClass('fa-pause');
                 $(btn).addClass('fa-play');
                 audio.pause();
               }
        }
        
    });
});
</script>