as for the leaking hatch question, i copied this from another site's faq (
www.crx.honda-perf.org):
Question: What causes almost every crx to leak when it rains. I have a 91 DX without
a sun roof. Could the lil plastic tubes be clogged from that hatch drain.
Every one's Crx around here has the same problem. It dont think its
leaking from the hatch seal. Any info appreciated.
Answer: After removing and replacing the sunroof in my 91 Si, I found it
wasn't the problem. Turns out the seam where the roof panel is
welded to the quarter panel of the car was causing the problem.
At the factory the two panels are spot welded togther and the
small gap left is filled with body sealer. As time goes by the
sealer hardens and then cracks allowing water to enter the
seam and get inside the car. I used some 3M "Heavy Drip Check
Sealer" to fix mine, it's available at autobody supply stores.
The seam is at the top two corners of the hatch jamb. The two
black black thingies that run the length of the roof conceal the
weld between the two panels. My car was leaking at the very end
of the passenger black strip right at the end. I popped off the
black thing with a small flatblade screwdriver and cleaned out
the crud in there, then applied the sealer over the old cracked
sealer. This stopped the leak for a few months, but now it's
back. (Although not as bad.) The proper way to fix this is to dig
out all the old crusty sealer, prime it with catalyzed primer and
then reseal the seam. I may do this before I repaint my car.
(end)
as for the water in the tailights, i have never heard of that one. maybe check for cracks/bad gasket