The AM radio station that stepped into South Florida’s classical music void when the local public radio station abandoned the genre three years ago has been sold to a religious broadcaster, and will likely cease its classical programming by the beginning of 2005. WKAT had struggled to attract advertisers since going classical in the fall of 2002, and even arts benefactors in the area weren’t terribly interested in helping the station out. Eventually, the station’s owners were forced to sell in order to pay outstanding bills.