I have to replace a 2004 Honda Civic LX Front and Rear Driver side doors. Do I have to use 2004 doors or are there other years I can use? Much appreciated!

The wrecking yards should be able to tell you. They have cross reference programs that tell the difference different years that will work. Get your paint code and try to get the matching colors to your honda. Painting the doors to match can be as expensive as the doors themselves.