To find out if *your* 1998 Ford Expedition has rear speakers, you'll need to:
* Check the owner's manual: This will list the audio system specifications for your specific trim level.
* Visually inspect the rear: Look in the rear side panels, behind the rear seats (if removable), and in the tailgate or liftgate area for speaker grills.
* Check the wiring: If you're comfortable with some light car work, you could carefully check for wiring harnesses in the rear that suggest speaker connections.
If you don't find speakers, it's likely that your Expedition was not equipped with them from the factory. Adding them would require purchasing speakers and installing them – a project that varies in difficulty depending on your car's model and your mechanical skills.
