From the RadioWest aircheck archives -
A "Carbo-Load" Weekend with Casey Christopher and the Zoo Crew's "Carbo-nacle Choir" on Spokane's 93 ZOO FM at the end of April 1991 -
https://soundcloud.com/westernbroadcast ... il-27-1991
Casey would go on to John Rook's KNJY 103.9 Spokane as host of the Z-Rock morning show and then afternoons on Seattle's 95.7 The Beat (KBTB).