QuestionHow do I install a cd changer in a taurus se wagon. Is the harness already installed or do I have to run the wires.
Answerhttp://www.installer.com/adapt.html
Look at the above for the right adaptor for your car.
You may be able to find similar adaptor units and connectors for your car at various car install places.
If there was no changer in the original car from the factory when new then it would not have the wiring and you will have to add it.
There are many changers that fit the ford, so you must get the adaptor that goes to your changer.
See; http://www.crutchfield.com/ISEO-rgbtcspd/cgi-bin/ProdGroup.asp?g=65500
http://www.powercallsirens.com/fordradio.htm
http://www.partydown.com/items/item254.htm
Etc.
Hope this helps.
c