So, I was able to find a pair of speakers, JBL GX328 3.5" Coaxial. These are 2.3 ohm speakers. They are also discontinued, so they are hard to find. I'm not sure if I found new old stock or counterfeits, but don't really care at this point.
I don't know that they sound any better than the stock speakers did originally, but they don't sound any worse, and they appear to have much better power handling capabilities, so hopefully I won't blow these.
For those interested in the details:
Much thanks to the poster of this video on YouTube. The wiring diagram it contained was invaluable.
https://youtu.be/ZpqHmOZfWew?feature=shared
One thing I would point out is that with the JBL system, you don't need the bass blocker since the amp has already filtered out the bass on those wires. I think he acknowledges that in the video comments.
I used the Red Wolf wiring harness available on Amazon.
Amazon.com
It says it works for the Limited, but it needs some modification for the JBL system in the Limited. It is a good start, but you need to cut and switch the wires so the wide connector is on the positive feed and the narrow connector is on the negative feed. Per the diagram in the video, the positive feed is the outside wire under the "hump" and the negative feed is the wire next to it. The other two wires are not used, so I just snipped them off short and taped them.
I fabricated a bracket for the drivers side. On the passenger side, I had trouble fitting the speaker in due to the duct for the dash vents. I was able to turn on the defroster to heat up the plastic and then force the speaker into place. I just have the speaker secured with one bolt at this time. I'll see if I notice any rattles.
The other thing I'm debating is if I want to try to drill some extra holes in the covers to increase the size of the grill pattern since these speakers are larger then the stock speakers and part of them is projecting under solid plastic.
I'll post some pictures later. It was dark when I finished last night.