
Visible crew/equipment: When Ponyboy, Dally, and Johnny are pulling up to the burning church, just before the first one jumps out of the car, if you look through the windshield, you can see the water truck that's going to put out the fire after they shoot the scene.
Answer: Johnny is recalling the argument he heard his parents having; the voices were meant to sound angry but not to be understood. Its to help us understand his horrid home life.