How do you reset the radio on a Toyota echo?

To reset the radio on a Toyota Echo, you can start by turning off the ignition and disconnecting the negative battery terminal for about 10-15 minutes. This will reset the radio's settings. Alternatively, you can try pressing and holding the "Power" button and the "Volume" knob at the same time for a few seconds to reset the system. Always refer to your vehicle's owner manual for specific instructions related to your model.