The tweeters i would mount in front of the door handle like the 1's that come stock with tweets. Great place for em they sound real good look clean ( as long as u flush mount em) and as far as the x-overs its hard to run wires through the door jamb cause the are a solid plug so the 2nd best place for em is under the pocket handle ( u use to close the door ) on the inside car side of the vapor barrier. Try to not put em in the door if your plastic barrier is a ripped up ,and puttin em in a plastic bag taped up dropped in the door is a short cut way of doing things. There is plenty of room in the bow of the door panel to hide em.