Some googling reveals that this exact broadcast has been repeating March 22 every single year for some time.
From BTown Monitoring Post:
Radio Is My Friend/ My Friend is Radio
6925.6 0127-0152 7/22/07SIO=444/545. Return of this story about Graham Conner at the Cherokee Asylum in Iowa. He doesn’t like the meat loaf or the high volume TV at the asylum, and it is not his home. Some woman named Abigail sent him to the asylum in 1979, but he doesn’t like it. Some rock mx incl “Radio Killed the Radio Star,” but mostly Conner moaning about his dismal fate in the asylum. No addr ancd. The only ID on this one is several repeats of the slogan as listed here. Probably the same xmtr as Mind Botch R., as both of them blasted in here. (Zeller-OH)
Also from naswa.net:
“My Friend Is Radio, Radio Is My Friend”, heard on 6925 USB, on October 31st, 2005 at 0000 UTC. The story of Graham Conner, who was a success in radio business until he killed his friend Abigail Walters in their cabin on Halloween 1979. He has been in Cherokee Mental Hospital in Cherokee, Iowa ever since. The male announcer likes to repeat the phrase “My Friend Is Radio, Radio Is My Friend”. Mentions of the “color of meat loaf”, “The TV being Too Loud”, etc. Contact: cherokeemental@yahoo.com. Not sure of station’s name. Zeller heard a morse code ID as WSVR, but I never did. [Lobdell-MA]