The radio works.
4 seconds sound clip from the The Angry Red Planet movie soundboard.
You can hear this line at 01:09:55 in the Blu-ray version of the movie.
Quote context
[...]
- Well, that's it. Cut in the generators.
- Aw, c'mon. Take it easy, Professor.
- The force field must be off.
- Turn on the recorder, Irish.
- Men of Earth, we of the planet Mars give you this warning. Listen carefully and remember.
[...]