No Crown Vic/Grand Marquis ever had courtesy lamps in the rear doors. However, that did not stop me from installing them. Here are the chrome lamps I purchased, masked and ready to be painted.

Here are the lamps after a couple coats of primer.

A close-up of the lamp housing, after being painted with Ford OEM interior pant.

Another pic.

The finished courtesy lamp. Now the housing matches the rest of the interior.

The stock rear door.

To gain access to the wiring tunnel between the body and the door, you must remove the panel that covers the seat belt track.

I used a coathanger to snake up through the door. Note the cut red wire and ground wire. Apparently something else from my Vic's days with the Feds.

There is little space inside the doors, so I used pliers to grab the end of the coathanger and pull it through.

The yellow and black wires that will provide power to the lamps, snaked through the door.

The door panels, awaiting the installation of the courtesy lamps.

I used a hole saw to drill and a small drill bit to make the required holes.

The lamp, installed.

A closer view of the installed lamp.

The panel, with it's new courtesy lamp, re-installed on the door.

A close-up of the finished lamp.

The finished door.

Here's the lamp, installed in the other door. Note the courtesy lamp that I also installed on the front doors.