92 Civic EX sedan. Rear speakers were blown so they were disconnected.
The originals looked like they had paper cones to bake in the hot sun.
Off to Best Buy to check out some nice Sony Xplode 5 1/4" on sale for
39.99 for the fronts and 2-way Pioneer's (with good reviews) for the
rear. In the store, they all sounded great for 5 1/4's.

Front door speaker grill pulls right off by hand, unscrew the 3 screws
holding the speaker down, snip the plastic clip-on adapter, connect
(solder/tape) the new wires and pop back in. Great.

The rears were another story. The Pioneer's didn't fit. They were
noticeably smaller than the factory speakers, but had 4 "ears" to screw
down instead of the 3 holes on the factory ones. I tried rotating the
speakers around for a while, but no fit. So, in go the 2 original front
speakers into the back deck. Back to Best Buy disappointed but saving
the cost of the Pioneer's.

Lesson: bring the speaker to Best Buy next time for an exact fit.

And a good day to all!

btw- I keep intending to check my mpg, but my 4 year old keeps pressing
the reset button whenever I turn around -doh!