What is the correct multimeter setting and procedure to check for parasitic current draw (battery drain) when the ignition key is off?

1. Set the meter to DC Amperage, disconnect the negative battery cable, and connect the meter in series between the cable and the battery terminal
2. Set the meter to DC Voltage and connect the probes in parallel across the positive and negative battery terminals
3. Set the meter to Ohms and measure resistance between the ignition switch and the engine block
4. Set the meter to AC Amperage and connect the clamp-on probe around the positive starter cable