I cannot think of any reason for a clicking noise in the driver's side interior, but a fuel pump would not be my first thought, or my second thought, or any thought for that matter. The fuel pump is located in the fuel tank, and a fuel pump, if it gives you any warning, it will usually be a humming noise from the underside area where the fuel tank is, not a clicking noise in the interior. Even the fuel pump relay isn't in the passenger's compartment, it is under the hood.
Check the fuses under the hood on the driver's side.
there is a tag on the driver side door sill that should state that info
driver's door, engine compartment
Yes, the Speaker is in the door.
On a 2005 Mercury Mountaineer : All Wheel Drive ( AWD ) has engine power going to all 4 wheels , all the time , and doesn't require any driver input
If your sitting in the driver's seat, open your door and look on the side of your dash panel.
You can get a diagram for the door lock assembly in the Haynes 99 Mercury Mountaineer Repair Manual. The book is available at most auto parts and major book stores.
Depending on the age of the Mountaineer, they all come with power windows now. The driver has control of all 4 windows and can also lock them so other passengers cannot roll up or down their window.
When a sunroof will not close on a 1997 Mercury Mountaineer, check to make sure that the hinges are not rusted. The fuse for the sunroof mechanism is in the fuse box in the dash on the driver's side. It might be possible to close this manually, if the hinges move freely.
You can view the 2000 Mercury Mountaineer owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides ( page 114 explains how to use the power seat controls on the side of the drivers seat , located between the seat cushion and the door )
It's the interior trim panel , just in front of the drivers door
The transmission fluid can only be checked with a special tool from Mercury (there may be aftermarket tools). A plug on the underside of the transmission must be pulled and the tool inserted. The short answer for regular driver maintenance is, "No."