The record player is first seen in the episode "Rooster". The record player only plays the song "Princess Cruiser" by Tongo Hiti on it.
Later on, the record player disappears for a while, but reappears in the episode "Eighteen", where the record player is seen being carried by a string to a red x with the New Guy following it. When the record player lands to a red x, the New Guy starts to dance on it but is soon captured by Shark. The record player is never seen again after that.
The record player reappears in "Awaken", in his warehouse.