Just got my X. Would like input on some features. The vent in the cargo area.....is it s real vent? I see all sorts of wiring behind the cover. Would recirculate use this vent to pull air to the back to keep my dog from freezing in winter? Also, is there anyway to enable the side vents by the wings for 5 seaters, or are they just decoration unless you have 3 rows of seating?