Thanks for the response.. attached is a photo of the original speakers (they are the same in the cockpit and the bow). I checked behind the speaker and the wires are fine.. if I push on the cone with my finger, I can get it to output sound again.... so, speaker is on it's way out for sure.
What are the part/model number for the JBL speakers you swapped in? Did you have to modify the holes already drilled, or did they line right up with the original cutouts? I like the "basic" look of the original speakers, and your replacement ones you put in. Some new speakers are too "styled" for my taste.
I still would like to stick with the original speakers for the near term if someone has them laying around.. I already updated the head unit to a Clarion M508, and it already sounds way better that the original JBL head unit.