Listen to the "V103 Chicago" radio station live. The "V103 Chicago" studio is located in Chicago, IL. Callsign: WVAZ. Broadcasting region: Chicago metropolitan area, Northwest Indiana. Start of broadcasting: October 17, 1950. Program format: Urban adult contemporary. Musical style: contemporary R&B and traditional R&B. Target audience: 18-54 years old. Audience Reach: 10,449,582.