If you are interested in making them I will send you my 03-06 pods for prototyping. Jeep is winding down and not really going anywhere thanks to Winter anyways. I'll leave the speakers mounted in them as is now, the same way most people do it, and you'll be able to see the issue with mounting them that causes the vibration immediately.
edit: Actually, I just remembered you sold Polk DB's. Go open one of the boxes and find the round black plastic adapter/spacer ring. That is screwed into the speaker pod first, and then the speaker to it.
Looking for: 03-06 interior plastic trim. PM me.