The funny thing about that is if you listen to Stern dropping N bombs basically qouting Imus and Robin wouldn't use the N word when she qouted Imus. Funny. I really don't care for Stern either.
Stern is no better (if not worse) than Imus. He can't talk about a black person (of any status) without making a nasty racist joke about him/her. It's impossible for him. He's just managed to get away with it for 30 years because no one's bothered monitoring him very seriously (so his worst stuff has never really leaked-out much beyond his protective, core audience).
This is the same guy who was a huge Giuliani supporter during the most racist times in the city and never had a beef with NYPD cops shooting unarmed and innocent blacks. He actually encouraged it as a preventive measure.