WCSY (940 AM) was a radio station that broadcast in South Haven, Michigan. It formerly simulcasted sister station WCSY-FM (103.7 FM). Until 2005, the station's format was Adult Standards fed via satellite from Westwood One; it later switched to an oldies format called "Oldies Plus", from Waitt Radio Networks.The station has filed a construction permit to move its community of license to Hudsonville, Michigan.