This is well detailed and illustrated in the Owners Manual - See "Related Questions" below for links to FREE Owners Manual downloads.
Also, the bulb type / number is 168 - takes 2 of them.
Straight from the 2002 Owners Manual, page 63-64 (other years are the same or very similar):
Replacing license plate lamp bulbs - Sedan
Replacing license plate lamp bulbs - Wagon
The "Related Questions" below add up to a full tutorial / how-to on installing a radio into a Taurus / Sable.Be sure to focus on the one for removing a radio from the 1986-1995 Taurus/Sable - not the other one about a converter plate as it doesn't apply to your '95.
how to replace the license plate bulb on a 2004 Honda cr-v
how do you replace a honda crv licence plate bulb on a 2004
how do u change the license plate light on a 2005 sienna
The plug-in is located 8 inches to the right of the front license plate (the license plate is located in the front bumper and about 1-2 inches lower than the license plate. The plug is weather-protected.
how do you replace license pate light on 2006 pontia g6
Unscrew license plate and remove to expose light fixtures. Wedge light module away from holes. Replace them and return them to sockets.
The 1999 Mercury Sable license plate light and the right side brake light are on the same fuse. If the fuse was bad neither brake light would work. The problem probably is burnt out lightbulbs.
It is very easy to change the license plate light on an Oldsmobile Aurora. All you need to do is remove the license plate and look above where the plate was. There are bolts that are holding the light in. Unscrew the bolts and then replace the light.
Open your trunk the two inner bulbs are for your license plate twist and should pop right out
How do you change the liscence plate light fuse
You need to unscrew the whole cover panel for license plate.