I did my '96 a few years ago. Power windows and door locks. Got everything off ebay. You will need the door wiring harnesses, door panels, switches, lock mechanism, and window regulators.
I think the harnesses I got were from a later model (98?) since the rubber accordian boot was a different shape from mine and I had to switch them around which meant pulling each wire loose from the connector to slide them on and off and reassembling.
The power windows worked by simply plugging the door harnesses into the factory dash harness. My truck already had power mirrors, so there was an existing harness going to each door and an under-dash harness. The door harnesses were replaced, but the dash harness was OK to use and already wired for power windows and locks (sort of... read on... ).
The power locks were a problem. In order for them to work, they need to reverse polarity to the lock motors and be synchronized (not fight) with each other. Most manufacturers use a special relay to do this. The dodge parts man swore up and down that dodges do not have door lock relays, but I could not get my locks to work both ways without one... I later found universal ones (also called "door lock modules") on ebay. But that was after I had already come up with my own relay system which I spliced into the main harness to perform the necessary functions, so I never tried one.
It took some researching on the 'net to figure out the solution, but it really wasn't that difficult once I educated myself on how relays work. The rest is logic, and it sure helped to find a wiring diagram of how to do it.
It required 4 separate relays all wired together to achieve reversed polarity. I know your next questions will be to ask exactly how everything got wired. I will need to take my knee panel off , unwrap some wiring, and see if I can refresh my memory to do that. Maybe I can find the wiring schematics, too. I save everything. Trouble is, that always means I have to look through "everything" to find anything... the curse of the packrat... Please give me a little time; I'm already heavily engaged throughout this weekend.
Bottom line is: Yes, you can do it and it will work great. Mine sure do. I also added power heated mirrors (but the deer that hit me last winter took care of them... ). I will soon be completing the hat trick with a power sliding rear window. Again, it requires the polarity to be reversed to the motor, but all I'm using to do that is a DPDT three position momentary contact toggle switch.
I like my factory manual sliding rear window very much, but with an extended cab it is inconvenient to use, so I found a good used power slider.
Oh, and my Boss Lock electric tailgate lock and the vehicle security system are also wired into my power door locks so one button locks or unlocks everything and I can do it with the alarm remote, too.
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