It is the sound that has everyone stumped and racing to the phones every weekday morning just after 8am. Thought up by 4CC’s Drex, the Secret Sound has certainly got people tuned in.

Listen for your cue to call each weekday morning after Drex has played the sound. Every day the cash jackpot climbs by $10! Miss the sound on today’s show? Click here to listen to 4CC’s Secret Sound!