Well, in my Explorer, i drilled a hole for the tweeter to be flush mounted right above the power window controls. The tweeters can be angled, but i usually point them straight... The component set came with a x-over so i placed velcro on the back of the x-over and placed it on the door panel on a flat piece. When the door is closed, you cant see the opposite side of the door panel which the x-over is stuck, but when the door is open, there is a big flat piece of the panel which my x-over is mounted on the other side of the door panel. The x-over isnt that heavy, so it isnt goin anywhere when the doors slam. Its connected to the 5.25 which is screwed into the door, and the tweeter which is connected to the door panel. so when i have to take off the door panel, i have to be careful because the x-over is strung up with wires goin to the door panel AND the door. hope this helps.