The Edge FM is a MediaWorks New Zealand New Zealand youth radio network, playing predominantly pop, rock and R&B. The network's flagship is The Morning ... See more Madhouse with Jay Jay Feeney, Mike Puru and Dom Harvey. The Edge was founded in Hamilton, is based in Auckland and broadcasts nationwide. Research International audience surveys suggest The Edge has approximately 424,000 listeners across all markets that are surveyed and the station makes up for 7.0% of the New Zealand radio market. The network is most successful in Waikato, Rotorua and Nelson surveys and in the 15–19 and 10–14 female demographics, whereas rival station ZM is most popular with listeners aged between 20 and 34. The Morning Madhouse is number two in the ratings for nationwide commercial breakfast radio programmes; its 237,900 listeners compare with 325,600 listeners for the top-rating Newstalk ZB.