I wasn't old enough at the time to entirely understand the kinda bigness of Shannon's coming to WPLJ in 1991. I was ten. My mom had always been a dedicated PLJ listener so we were a Power95 family in the 80s during the Z100/PLJ competition years. Hell I even remember going to meet Jim Kerr and Shelly Sunstein at some appearance they did at a Shop Rite here in Jersey during those days.Not sure about that, but the fact is that Shannon left Z-100 in 1989 to launch Pirate Radio in Los Angeles.
He lasted two years, and then returned to NYC to join WPLJ.
I do have strong memories of Shannon trying really hard to make "Mojo Radio" stick as an identifier for the station (and downplaying the heritage call letters, which it had changed in the late 80s in a fit of "fitting in with the time") in his early tenure as the PLJ PD. It did not last. Crazy that he ended up doing 23 years at PLJ after taking its greatest rival in the 1980s to the top but only lasting six years.