LAPD around 1974, had a guy that liked to play a cassette of the Tarzan yell on the PA speaker after midnight. Guess what part of town.
I was (ahem) riding in the back of a Detroit patrol car back in 1987, and it had a cassette player hanging from the rearview. I only remember it because it was playing some Bruce Springsteen song about getting shot, and the cop on the passenger side was asking the driver, “do we need to listen to this?”