In a nutshell, his listenership tanked, so KFYI bumped him to later in the night and moved Liddy and Hill up. This prompted Goyette to write something of a hit-piece on KFYI in The American Conservative. Apparently, at one point or another, the guy threw a temper tantrum and said some rather unpleasant things about Rush, Hannity, and L&H. Then he made a big deal about his contract.
Having burnt all his bridges, he sort of vanished from KFYI without anyone really noticing.
He occasionally wrote articles for the America West Airlines magazine. I was unaware of the stint at Air America, though. It looks as if he took the Lyndon LaRouche approach, then. He went from Right moonbat Left. Sad, as he was allegedly a Goldwater kid. Well, then again, so was Hillary.