Just follow the positive (red) battery cable down to the starter.
You could turn off the valet switch which usually is located under the dash in the area of the steering column.
Inside the oil pan
The starter is located on the passenger side of the car attached by 2 bolts to the bell housing.
At the left rear under the engine.
bottom of engine below ex manifold.
Located in rear of engine under intake manifold , left side of engine
Check the starter motor, is it an auto?
On the starter solinoid