Hello Devon,
The JS code will not work on your site because the JS code in this old thread is intended for the classic accordion element. If you want the JS to work, you will have to manually recode it using the new class selector of the new accordion element that you are using on your page. You need to use the Google Chrome Developer Toolbar to check the live HTML code and find which CSS selector you need to use.
Please note that custom coding is already outside the scope of our support. Issues that might arise from the use of custom code and further enhancements should be directed to a third-party developer.
Note: If you are unfamiliar with code and resolving potential conflicts, you may select our One or Care service for further assistance. We are unable to provide support for customizations under our Support Policy.
Thank you for your understanding.