Rob Shuter reports…. Howard Stern plans to retire when his Sirius XM Radio contract ends in 2020 — and the company’s in a panic!

“Howard is the golden goose that holds that entire company together,” a source told The National ENQUIRER.

“Without him, it could crumble!”

Howard Stern’s War On ‘Queen Of All Phonies’ Kathie Lee Gifford!

“Their best attempt to find a successor is hiring Bravo’s Andy Cohen, who isn’t exactly setting the ratings on fire,” the source continued.

“The latest suggestion is hiring Ryan Seacrest — or offering Jimmy Fallon his own show!”