Chiefs Radio Network Expands Coverage to St. Louis KANSAS CITY, MO, and ST. LOUIS, MO, AUGUST 12, 2016 – Chiefs Radio Network, owned and operated by Cumulus Media, announces the addition of CBS Radio St. Louis stations KMOX–AM and KYKY-HD3 as affiliates airing Kansas City Chiefs games for the 2016 season. The expansion to St.…… MORE