Complex sentence: However, the revamped "Sunny FM" was a ratings failure, and after Citadel Broadcasting took over the station in November 2004,100.1 FM was switched to the current adult-urban format, which has proven popular among the African-American community in Muskegon.
Split into simpler sentences: However, the revamped "Sunny FM" was a ratings failure. After Citadel Broadcasting took over the station in November 2004,100.1 FM was switched to the current adult-urban format, which has proven popular among the African-American community in Muskegon.