How bad has it gotten right now, is it just faded with the color or are you already having cracks in it? I know many that will go ahead and just get a sun screen for the car, but depending where you live sometimes they get extremely hot (I lived in AZ once and avg. summer temp there is 119F). I know some that will also get a mat to lay across the dash.
This place has covers of all types, but it doesnt say specific if it will fit a certain type of auto, might be best to call and ask, they do have a lifetime warranty though.