My Civic VX does not have AC but there is still a light for the ac button. There is a plastic cover for the light but i was wondering how hard it would be to put in a button. I think it would look better than the plastic cover but i do not know if it would be worth the work.

 

Well if it isn't supposed to be there than I think you might as well save the trouble of throwing it in. Just leave it as is.