It's behind the front panel of the trunk. The fuel drains from the bottom, though the floor to the fuel line. The fuel level sender is under the back deck and needs to be unplugged. Then there is the fuel inlet.
You have to remove that cover in the trunk that is hiding the fuel tank. After that you must disconnect all the lines going in and out of the fuel tank. The fuel sender (as wbain pointed out) it is under the rear seats and the hole that you can reach it (maybe) is covered by a plastic circular cap.
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