Follow these steps to get your Companion 5 working perfectly on macOS Sonoma, Ventura, or Sequoia.

After downloading, go to System Preferences > Security & Privacy > General . If you see a block message about the Bose installer, click "Allow Anyway" before running the installer.

Before searching for a download link, understand what the Bose Companion 5 software (officially called Bose USB Audio Driver for Mac ) actually does:

Some users have reverse-engineered the USB protocol using or Loopback (Rogue Amoeba), but there is no stable, user-friendly solution to restore the surround button on modern macOS.