Originally Posted by Commander Keen
How far apart are the mounting holes on the tweeters? Do they have an integrated high pass filter?
The mounting holes are about 3 inches apart. The tweeters mount with screws. I suggest a stubby (short) Philips screwdriver for this. You can reuse the screws that came with the stock tweeters, or use the ones that come with the Kicker tweeters.
To access the screws, you pry off the cover. Pry it off the front edge (closest to you). I just used a short, flat-edge screw driver with a thin blade. Insert the blade about 1 inch over from the rounded edge, push forward a bit and lift up about a quarter inch. Hold the corner up in place, then do the same on the other edge (insert screwdriver about an inch from the edge, push forward and lift up. Once the front edge is free, you can lift up the cover, pivoting off the back edge.
As for the high-pass filter, it must have one or the bass frequencies would blow it out. I don't know the crossover point, but based on the sound, I'd say 2K or 3K.