You are correct that you require installing a resistor on every LED bulb (3 per headlight assembly, and 2 per taillight - which is 10 resistors total). If and when I ever sold the jeep and wanted to go back to stock headlights I would have to remove the resistors and possibly would/could have damaged the stock wiring when installing.
in the respect to a resistor for the WJ there is not a replacement relay for the COMBINATION FLASHER.
I have looked high and low - which is why I am reaching out to request someone make one for me.
The COMBINATION FLASHER (relay) is responsible for the control of electricity to the turn signals and there proper operation.
This is all my understanding anyway....