Yes I just got the car last week and has been for awhile. I believe it's the motor that clicks .
I guess the first order of business would be to carefully remove the door panels from the inside of you non-functioning doors. You will need to remove the armrests, the door handle, the lock button and any other screws that are visible on the panel. The panel is held in place by a series of white plastic "buttons" that are spaced around the outside edges of the panel. If you have a trim removal tool with the "V" shaped jaw, use this to pop the ribbed shank of the retaining buttons out of the door frame. Do not just try to pull the panel off as the head of the retainers is set in cardboard and they will pull through. If you do not have the trim tool, one of those short crowbars that has the curved end with a v-jaw and a straight end with a v-jaw will also work.
Once the panel is out of the way, remove the splash guard from the door so you can see inside. Note the condition of the lower part of the tracks, are they full of pine needles, dirt etc. Clean them as best you can and spray the tracks with some silicone lubricant. The window regulator gear and the lower window track should have some white grease applied. Spray the pivot point of the window regulator with some spray lubricant. Inspect that the window is still in the tracks and the two guide rollers on the lower track are still in place and inside the lower track. Now, turn on the ignition and re-hook the power window switch to the motor harness and attempt to lower the window, it is ok to push down on the window while trying to do this. If it moves, cycle it several times, assisting as necessary. If the window gets to the point it works normally, you are done, put everything back together.
If your window still does not move at all, you probably have either a bad switch, a bad motor or no ground to the door. If you can move the window from the driver controls but not from the rear, you have a bad switch on the rear door. If the window operates from the door control on the individual door but not the driver control, the driver control is bad. Nothing from either switch on any one door will usually be a bad motor. Try hooking a jumper cable from the door frame to the vehicle frame, if the window then works, you have a bad ground to the door, you may have to run a ground strap from the hinged side of the door to the door pillar, this will usually supply enough of a ground to operate the motor.
If you find a bad switch, carefully unbend the tabs that hold the back on, do this on a newspaper so that no parts get lost, some switches have a couple of plastic push bars that hold the switch together, push these in to take the back of switch off. Look at the contacts on the switch, if they are burnt or corroded, clean them up and re-assemble the switch, it should now work.
If the motor grinds but nothing moves, the internal gear is stripped and you will need to replace the gear or replace the whole motor assembly with a new or rebuilt assembly. If if the motor does nothing at this point, after taking the steps above, it is probably shorted out or badly corroded so that the circuit is "open". You will need a new assembly. You can test for an open motor with a continuity tester. If you suspect that window is stuck tight, you can unbolt the regulator assembly and attempt to free up the window manually by lifting it up or pushing it down.
Dave