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JavaScript Treehouse Club: JavaScript Car Sounds Changing Keywords

I change the function under the Javascript section to from startCar to bikeBell, but there is no sound when I preview it

I also tried changing the functions and values around in the workspace to change the sounds of each button with each other. I.e., the honk sound tied to the engine picture. The result was no sounds in any of the pictures. I am not sure what I am missing in the code. Thank you!

index.html
<!DOCTYPE html>
<html lang="en">

  <head>
  <meta name="charset" value="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=0.5, maximum-scale=0.5, minimal-ui">
    <title>Car Sounds</title>

    <!--Style Sheet link-->
    <link rel="stylesheet" type="text/css" href="css/style.css">
  </head>

  <body>

    <!--Car image -->
    <img src="images/bike.png" class="car" alt="car">


    <!--Button-->
    <a href="javascript:startCar();"><img src="images/bikeLock.png" alt="key"></a>


    <!--Audio Files-->
    <audio id="startCar" src="sounds/startCarA.mp3" preload="auto"></audio>


    <!--Javascript-->
    <script type="text/javascript">
        function bikeBell() {
            document.getElementById('bikeBell').play();
        }

    </script>

  </body>

</html>