Audacy Classic Hits KXSN “Sunny 98.1” adds one-tenth to April 2025’s +.6 (8.3 → 8.9 → 9.0, 6+) and is on top the fifth month in a row. Tumbling by seven-tenths each are Local Media San Diego-operated Alternative XTRA “91-X” (4.4 → 3.7, seventh to ninth, 6+) and iHeartMedia CHR…