The Crutchfield recommended Infinity speakers for OEM replacement sound very good, there is a much better improvement than I expected over the Honda Clarity OEM woofers and tweeters. To my ears the sound is now much less distorted (the "muddy" is gone), and the sound seems more accurate and well defined. The OEM radio head unit is surprisingly good with better speakers.
I had a difficult time hearing anything out of the OEM tweeters, making me wonder if they were even connected. The sound out of the Infinity tweeters is clear and present. I was concerned a bit about a coaxial woofer tweeter down low (normally in component installations, the lower speaker is only a woofer). Setting the switch (small triangle shaped button) on the lower speaker tweeter to "0dB", not +3dB, seems to give good results and nice balance.
Another alternative for just OEM speaker replacement (no amps added) might be the Adison Prima system (much more expensive, but has some good ratings). A plus of the Crutchfield system are the supplied plastic mounts with the correct Honda mounting tabs and the connectors for the door speakers. The tweeters take a bit of soldering (from the inline crossover to the car).
For the front doors, there is a philips screw behind the switch panel which lifts out. For the A pillars, it takes a little work to remove a melt tacked inner structure for the original tweeter, and some gentle filing to open the hole a bit.
The electrical contact strip for the door speakers ends up close to a section of door metal. Just snipped down any sharp edges and added a few layers of electrical tape for good measure, seems fine.
Very pleased I made the upgrade. Might do the two back doors later.