The tape can be found in the Fizztop Grille's patio, on a table near a bed.
Raider man: You sure this is gonna work? What if we overload the processor? Could fry the whole system.
Raider woman: Then we salvage it for parts. You really think anyone's gonna miss this robot? Now hand me that screwdriver.
Raider man: If this little personality upgrade works, it's gonna be the funniest damn thing in the park. Man, I can't wait to see the looks on the other guys' faces when they try to talk to it.
Raider: There, all done. One slightly raider-ized robot, ready for duty.