Where is the spark plugs on a Nissan Maxima?

The fron three are located under the plate that says Nissan, 3000, etc.... then there are tree ignition coils with 2 screws on each, with those remove you will reveal the spark plugs, they are down about 12-16 in. Then for the other three look futher back for the same type of ignition coils when located reove the and repeat the cycle.