"There's one on mine? But someone could've put it there... Don't know if it comes, uh, what's the word? Standard? On everyone's."

For all Zuko knew, Weiss or one of the people working at the Guardian Offices in Fayren could've installed it. Technology wasn't really his strong point, and this is the first time he's referenced the map. He preferred to do things the old-fashioned way, so to speak.