Question for those who know about Honda Civics, 2002 lx model, and interior car radios and radio covers?

Hi! I own a 2002 honda civic, 4 door lx model. I don't necessarily want to install a new radio in it, but I would like to modernize it with a radio cover. I'm not sure how to go about this and I'm really not very educated in the automobile department. I would very much appreciate any information about this and advice of how to make this happen. Thanks so much!