Changing spark plugs on a 99 Cad Catera?

I need help understanding how to change the spark plugs on a 99 Cad Catera. Just lifting the hood is no help. It appears the wires and plugs are covered up somehow. Please assist if you can. I want to avoid taking it to a dealership if I can.Changing spark plugs on a 99 Cad Catera?
The spark plugs are located under the upper plenum on this vehicle. When you open the hood there is a large plastic cover to be removed, the upper plenum is an aluminum item typically attached by 10 to 12 bolts. Once the plenum is removed you will have access to the spark plugs. The spark plugs are platinum and expensive. It is typical to only have to replace them after 100,000 miles. If you have less you may be able to have the Fuel(induction)system service that will remove the carbon build up. Not to sound degrading but I would leave it to a professional mechanic on this ride.Changing spark plugs on a 99 Cad Catera?
Rh side:Relieve the fuel system pressure.Disconnect the fuel supply and return hoses from the intake manifold.Move heater hoses. Unplug electrical connection @ coil pack.Remove the coil pack retainer bolts. Remove Coil pack. Note: Gm uses a special tool in order to avoid damaging the coil pack. You can fabricate a similar device.Lh side more straight forward.
You have to take the plastic cover off the engine.May also have to remove the upper intake plenum to reach some of them.Car is not very popular so I'm not sure if it is coil over plug or not.Hopefully a GM expert will chime in.
look and see if you can pull the front tire and the lowwer part of the inner fender then you should be able to get to the spark plugs the is what i do to my truck 2003 frod you can bye the replacsement pins to put the inner fender back on cheap