Chad was talking about the Integra. I had a 94 Integra Type-R clone that I had Koda components in. The tweets were in the kick and the mids were in the factory locations. My sound stage was really wide and really deep...and it was about eye level too. Those Koda's kicked butt in the midbass department too...man those were nice mids. I let them go with the car when I sold it though.
You'll have to ask Chad what kind of alt it is. It was externally regulated (talk about a bitch to wire up and make it all look pretty - I'm anal about everything) and the external regulator is still in the car wired up but it doesn't control anything now, obviously.
Putting tweeters in the kicks and imaging well is pretty simple really - you want everything to come from one location. If you aim the tweeters correctly (I do passenger side tweet aimed at the driver and driver side tweet aimed at the passenger) and put your mids really close to the tweeters your sound stage is almost always really high. When you get into having to tune the PISS out of your tweeters (usually active systems b/c they offer more flexibility, which is what I mean by "tuning" a tweeter) is when you have your tweets on the A-pillars and your mids down low. Not to mention that it's a time alignment nightmare. I ran the Koda's as they came stock and I only had one channel of time alignment (the left channel was the only one delayed) and I won every SQ competition I entered.
The Civic will be an interesting project because I know what I have in my head...all I've got to do is make it happen in the car.
*edit* I forgot, the Civic is a 94.
PS: Here are a few pics of the Integra's kicks (it's also at the bottom of the demo car page):
Those were during the install phase, so things were dirty.
Here's another shot of the car:
And the best pic... (man I loved the way it looked back there)