wiring harness

If you want true plug and play, almost, go with actual reproduction factory harnesses. The Painless and other "universal" harnesses are kind of general wiring harnesses that give you basic functions that you have to adapt to your car. They have been shown to not be all that Mopar friendly and some use GM connector types that don't really match up in a Mopar.

If you are good at electrical wiring, can trace out basic circuits as well as change connector types if required the universal harnesses may work for you and save you some money. I don't think they will save you much installation time or effort.