FEATURES
Volume Control: Most remotes will have buttons to adjust the volume up or down.
Source Selection: You can typically switch between different audio sources, such as radio, CD player, USB, Bluetooth, etc.
Track and Folder Navigation: If you're playing music from a USB drive or CD, the remote may allow you to skip tracks and navigate through folders.
Mode Selection: Some remotes have a button to switch between different modes, such as radio, CD, USB, and Bluetooth.
Audio Settings: You might find buttons for adjusting bass, treble, balance, fade, and other audio settings.
Phone Control (if Bluetooth is supported): If your car audio system supports Bluetooth, the remote might have buttons for answering calls, ending calls, and adjusting call volume.