The idea is good, but the implementation needs work.
The danger sound doesn't assist the player at all. Therefore, make it a sound that adjusts based on how close to danger one is. Metal detector sounds, not the monotone ones, but the variable pitch ones could indicate danger.
Also, you could have music playing when the person in on the green track of the maze. When they get off the track (even veering to the side of a straight section of track), the music drops based on their distance away (and not too far off the line or it's easy to get lost).