Complex sentence: He would go on to WCKG FM 105.9 as midday host in 2002, he stayed there amidst lackluster ratings until departing abruptly in the spring of 2005 amidst a contract dispute.
Split into simpler sentences: He would go on to WCKG-FM 105.9 as midday host in 2002. He remained at WCKG until departing abruptly in the spring of 2005 amidst a contract dispute.