Prayers and well-wishes have been pouring in to news/talk WLS-AM (890) since listeners learned Monday about morning host Don Wade’s upcoming surgery to remove a growth from his brain. “The response has truly been overwhelming,” said Donna Baker, vice president and market manager of Cumulus Media in Chicago. “Many thousands have written in — and they’re really heartwarming. This man has friends who are praying for him all over the world.” Wade, 71, who has hosted mornings on WLS with his wife, Roma, since 1989, is scheduled for surgery Thursday in Chicago. The station has an email account at: getwelldon@gmail.com.