How do you replace the spark plug wires on a 1996 Ford Aerostar?

To replace the spark plug wires on a 1996 Ford Aerostar, start by ensuring the engine is cool and disconnect the negative battery terminal. Remove the old spark plug wires one at a time to avoid confusion, noting their positions. Install the new wires by connecting them to the spark plugs and the ignition coil in the correct order, ensuring a snug fit. Finally, reconnect the battery terminal and start the engine to check for proper operation.