WSYN (103.1 FM, "Sunny 103.1") is a classic hits music formatted radio station licensed to Surfside Beach, South Carolina and serves the Grand Strand area. The Cumulus Media outlet is licensed by the Federal Communications Commission (FCC) to broadcast at 103.1 MHz with an ERP of 8 kW. Its current slogans are "The Grand Strand's Greatest Hits".The Station airs the "John Boy & Billy Big Show" weekdays from 6-10 A.M..