My new horn wire that came with a new mast bearing was 16 to 18 gauge... did some year trucks have a horn relay and others did not?

The wire from the horn button going to a relay would be a small gauge wire, right? Then the horn side of the relay would have heavier wire, right?


~ Dave
1950 Chevrolet 3600 3/4-ton with 261 engine & T5 Transmission