Inside the gas tank I believe...  :-(

again, what problems are you having?  describe your situation so we can
give better advice please.

On top of the gas tank, on the driver's side. I believe in that model you
need to remove the rear seat cushion to access, which is a bit of a pain.

What's wrong that you need to get at the pump? They don't usually go bad.

If the car won't start, it's normally due to several other factors, like
the Main Relay or the igniter/coil.