ok, i have played around with power windows a bit and the easiest option for you would be to get the front only ones out of an accent, you will need switches from both sides motors from both sides and the complete door wiring loom for both sides, the spare plug you are seeing is it up next to the one that goes to the electric mirror? its for an extra tweeter speaker. the door looms are completely different in manual and elec models. So when you get all of it you will have to get it from a japanese model and make sure it is a non facelift like yours, facelifts have all auto up+down and prefacelift have only drivers auto up+down, but they are not interchangeable. when it comes to rears they have different motors for different body shapes but the fronts in the japanese built ones they interchange just remember prefacelift and facelift are different! you will have a hole where your window winder was too but just mount a tweeter over it! what colour is your interior trim? as for cruise control, aftermarket..... wow sight and sound do a few kits and install. To get the window winder off grab a chux wipe fold it a couple of times and slide the edge of it between the winder and the plastic ring behind it and pull it around and around until it grabs the edge of the clip and it will pull it off,