spot you dont have to take out the air vents. the clean space on the other side of each vent is perfect because there is plenty of room for error. yeah you have to cut a circular hole but if you tweeter mounts are similar to the infinity style then if you cut the holes too big they just slightly sink in to the door panels and give a nice molded in factory look. plus you can just run it off your door speaker and not have to run wires all over the place.