So, I realize that I am replying to my own posts...which is odd...but hey...if it helps someone.
Anyway...I think I did all that work for nothing, because I was looking at things. There are two separate wires coming in...one for the mid speaker, and one for the tweeter.
Since I am only upgrading the speakers and not the factory head unit and amp, I shouldn't use the Polk crossover...that work is already done by the factory hardware.
And then I found this post, which I believe confirms this...
Originally Posted by amrunner4
I don't think I'll be using the crossover as long as it's a straight swap with the factory wires. The tweeter and woofer are two separate channels coming into the door, so they have already been processed by the factory amp and HU. Doesn't seem to make sense to add another crossover - and I don't know how you could wire it. It don't think it would make sense to attach both the tweeter and woofer channels into the 'IN' terminals on the crossover, and then take the separate feeds from there.
Now if you completely rewire the system and have a summated single channel coming into the door, then certainly use the crossover and have it split the signal for your tweeter and woofer.
Ahhhh...live and learn...