Hello, Im a newby here. My wife wanted an suv, So we got a 04 lt suburban with the captain chairs in back and all the little goodies. I did not want one, But must admit. I fell in love with it. She rides great! Very comfy. Now for the question- I purchased a pair of smooth rear vent caps for it. I noticed that the originals have holes/vents. So I took it off, and saw real vents in the rear panal. What are these for? By putting on the smoothy's with no holes, will this disturbe or cause any relating problems to anything? Thanks.