Before:

After:

    This mod was done on my 1989 Mercury Cougar LS. This mod MAY or MAY NOT work on other Ford/Lincoln/Mercury cars. This is a weekend project. I spent over 12 hours on this, mostly since I was winging it and messed up a lot. It may take you more or less time to complete. I did not encounter any major problems doing this mod, but there is defiantly the potential of damaging your digital dash, electrical system, and many other components when removing, dismantling, and working on the dash. I take no responsibility for anything damaged or broken because of this mod. Make sure you read all the steps before starting.
 
 

Materials:
    1) Screwdriver with starbit
    2) Philips head screwdriver
    3) Standard (flat head) screwdriver
    4) Razor blade
    5) Rubber cement
    6) Colored cellophane

Step 1: Unplug The Battery!
This is the most important step, if you don not unplug the power cable from the battery you may short out your dash and damage the cars computer and sensors!

Step 2: Getting To The Digital Dash.
Use a long, skinny phillips head screwdriver to remove the cover around the steering column. Using a small standard screwdriver remove the plastic knob that turns on the headlights/interior lights. Unscrew the two screws that connect the dash-trim to the car. Reach behind the trim and disconnect the wire harness from the back that connects to the buttons on the right side of the trim. Then remove the dash-trim.

Step 3: Removing The Digital Dash From The Car.
For this you will need a screwdriver with a star head. I picked up a really nice 10-in-1 screwdriver from ACE Hardware for under 3 dollars that had it. Remove the four gold color screws that connect the digital dash to the car. Pull out the dash far enough that you can get to the large gray wire harness on the back left-hand side and also the smaller black wire harness from the back right-hand side. Pull out the Dash from the car being careful not to scratch the clear plastic cover. If you reconnect the battery and start the car without the dash, it will mess the computer up and will very quickly drain your battery. If this happens, disconnect the battery terminals and use a charger to get your battery fully charged. Leave the power terminal disconnected for 30 or so minutes to reset the computer. This should fix the problem.

Step 4: Dismantling The Digital Dash
Take out the lights on the bottom of the dash by twisting them. Unscrew all the screws from the back of the dash. Disconnect the 3-pin wire harness that connects on the back left-hand side of the dash.

Now remove the inner dash from its case. It should look like this,

Step 5: Changing the color (this took me a long time and requires patience)

A) Pull the three glass panels down.

B) Using your fingernail peel the white stickers off of the glass, they should come off fairly easy.

C) Now get a razor blade or exacto-knife. Place the three pieces on cardboard and carefully cut out the green and red.

D)Using rubber cement dab a small drop of glue on the red warning squares. Hold the dash up to a light and glue the red dots where they originally were. If you want to use a different color for the warning lights you use can cut out small pieces of colored construction paper and glue it on instead, you can also cut out the yellow pieces and do the same. Be sure that you remove any glue that is visible on the sides of the squares, other wise it will show up later and look really bad.

E) Using the rubber cement re-glue the three sticker pieces back onto the glass in the original places. Make sure no glue is visible and that it is aligned correctly by holding it up to a light. Let the pieces dry.

F) Now, using the colored cellophane, cut out 3 layers to put behind each of the pieces, a total of 9 pieces (you may use more or less layers if you want, but for blue if you put more than 3 layers it is hard to see during the day and if you put less then the bulbs that light the display up are very visible). Make sure that there are no creases in the cellophane. Lay the cellophane on the back of the panels and use a sharpie to mark where the yellow and red pieces are. Remove the cellophane, usuing a razor blade cut out the parts you marked. Do this with every piece. Using a small amount of rubber cement, outline the sides of the panels with glue, don't put any glue where there are yellow or red pieces. Lay the cellophane on the panels making sure not to smear ANY glue onto the glass, if it smears on the glass or any visible part of the cellophane you must remove the cellophane and repeat step 5F. Once the first layer dries, apply small amounts of glue in the same spots as the first layer, then lay the second layer on, do this again for the third layer. If at any time glue touches a visible part of the cellophane, remove all the cellophane that the glue touched and repeat step 5F. This part took me the longest. It requires a lot of patience and a steady hand. After the cellophane is glued on, check to make sure the cellophane isn't touching a red or yellow part, it will discolor the warning lights. If it is, use a razor blade to carefully cut the cellophane from these parts making sure not to scratch the glass or the red/yellow squares.

Step 6: Reassemble The Dash
Reassemble the dash and hook it back up to your car. Make sure you get all the wires plugged back in. Put the rest of the car back together and then reconnect the battery. Start the car and enjoy your new dash.