They look just like the ones out of my 1989 JDM MKIII GT Limited. I took apart the doors completely, fairly interesting... no clip ons but bottoms screw off
. And while it doesnt look like 4'' enclosure, once the door comes off you get nice access to the pod. It's also padded for sound deadening which is nifty.
As for brand.. I have the plastic bag where I chucked mine, I can check exactly in 5.5hrs when I get back home from work, and i'll tell ya
.
I replaced mine with a sweet pair of Pioneer TS-E1076.
Link here... I got them for $130 from a local dealer... but Australia sux for Audio something tragic... wish I had the retailers that America has... :S much muhc bigger Market....
http://www.ryda.com.au/Pioneer-TS-E1076-Car-Speakers-p/tse1076.htm
These 4''s also provide a great sound... excellent clarity crispness for mid-high range frequencies but I did do full rewiring for the 4''s.