Take it off
On top of the engine, but you have to remove the cover to see them.
Remove the plastic stone guard cover below the engine, then you will see it adjacent to the rear of the engine
If your facing the front of your cad. it is on the right side of the engine, you must remove the cover from the engine to see it.
First you remove the plastic engine cover on top of the valve cover. Then you remove the wires from each of the three coils, then you remove the bolt holding each coil and remove coil. Down in that hole is the spark plug, remove with socket and replace.
2 or 4 of the 6 silver like rectangles in the center pop off and there are bolts under
Aerio oil filter is on the front side of the engine behind the lower engine cover remove the 2 push pins that hold the lower engine cover to gain access to the oil filter THAT MEANS UNDER THE ENGINE!!!!!
There is a plastic cover in front of the engine. Under the cover is the intake manifold. After you have removed the plastic cover, then the intake manifold you will see the starter. Before you can remove the starter you will need to remove wires tubes and linkages. It will take a few hours if you are good.
You remove the large plastic engine cover from the top of the engine (remove the three plastic caps, then loosen the three 10mm nuts). It's right on the front top of the engine under a plastic cap about 3" in diameter.
You will find it on top of the engine close to the firewall. Remove the Vortec cover for better access. It will slightly off center to the driver side in the "valley" of the engine.
It is on the right side of engine in a small black box and once you remove the cover .read the relevant fuse and you will find it there.
Remove the cover from your 2003 Kia CD player. Remove the CD player retaining screws. Remove the wiring harness from the back of the CD player.