KDMX originally launched a secondary HD Radio (HD-2) subchannel known as "The Music Summit", broadcasting an AAA format. It has since then moved to KZPS 92.5 HD-2 to make way for Pride Radio (previously on KHKS HD-2) with a format intended for the LGBT community. On March 28, 2011, 102.9 HD-2 flipped to a Soft Oldies/AC Gold format as "Sunny 102.9 HD-2", shifting "Pride Radio" back to 106.1 HD-2. As of January 8, 2014, KDMX-HD2's format has been changed to a syndicated Delilah nighttime love songs program that was previously dropped by KVIL.