My power windows buttons have fallen into the door panel

You have a major problem. Either the window regulator or the clips that hold the window on broke. My guess is the regulator because of the cable. To disassemble the door look for the screws holding the inner panel on remove them don't forget the one in the door pull and behind door handle. Carefully pry panel off remember there is some clips holding the panel on. Disconnect any wiring connection and carefully lift panel up towards top of door do not force. You will see a cover of some sort remove it. You are in door and should be able to see the problem

nope panel must come off. remove the screws in your door handle and arm rest then unclip the panel

Remove the door panel & see why it came
loose & resolve

Remove the inner door panel,same as you would on any
other vehicle

You have to gain access to inner door,to work on window
regulator replacement,etc

psbowlchoker, Sounds like the window has fallen out of rail, When the glue or opoxy gets brittle it happens. The rail is moving witthout the window in it. Get your self some door panel tools and go for it. Also get the door panel buttons, no matter how careful you are they always get buggerd up somehow. Two part epoxy- metal-weld is the best bet to re attach the window to the rail. good luck

The window either came unattached from the window regulator or your power window motor's gears inside are stripped, either way you need to take the door panel off to diagnose the problem.

Yes. But it is not as simple as putting the window back on track. Most new vehicles use a different type of regulator (not the old pinion and rack type gear. Most use a small motor that is attached to cables that raise and lower the window. Most often these cables break and the window falls. Pull the inner door panel off and you can verify. If it is the regulator, check out Amazon. Seem to have the best prices and warrantees. Good luck!

probably need a new window regulator. ebay. 93 to 98 should fit.

Section 01-05: Trim, Interior 1998 Villager Workshop Manual
REMOVAL AND INSTALLATION Trim Panel(s), Door Front
Removal

1. Disconnect the battery ground cable (14301) if equipped with power locks or power windows.
   

1. CAUTION: Use care when removing the front door inside handle escutcheon (22620). Failure to do so can result in damage to the component.
   Carefully pry off the front door inside handle escutcheon by inserting a standard 1/4 inch screwdriver between the top rear portion of the front door inside handle escutcheon and the front door trim panel (23942) .
   
   
   
   
   

1. If equipped with manual windows, slip a clean shop rag between the window regulator handle (23342) and the front door trim panel .
   

1. Pull the shop rag back and forth to release the window regulator handle clip.
   
   
   
   
   

1. Remove the three cover caps and front door trim panel screws.
   

1. Remove the one front door trim panel capped screws from the door pull handle.
   

1. If equipped with power windows, remove the door pull handle. Disconnect the electrical connectors.
   

1. Slide a flat-bladed tool behind each of the retainers and twist the tool to disengage the front door trim panel from the front door (20124) .
   

1. Remove the front door trim panel.
   

Installation
To install, reverse the removal procedure.
---------------------------------------------------------
Window Regulator, Power Front Door
Removal

1. Disconnect the battery ground cable (14301) .
   

1. Remove the front door window glass (21410) . Refer to the front door window glass removal procedure in this section.
   

1. Remove the two front door brace bolts and the front door brace.
   
   
   
   
   

1. Disconnect the front window regulator electric drive electrical connector.
   

1. Remove the four front door window glass regulator track bolts.
   
   
   
   
   

1. Remove the three front window regulator electric drive bolts.
   

1. Remove the front door window glass regulator track and the front window regulator electric drive (23394) as an assembly through the opening in the front door (20124) .
   

Installation

1. Install the front door window glass regulator track and the front window regulator electric drive as an assembly through the opening in the front door .
   

1. Install the three front window regulator electric drive bolts. Tighten the front window regulator electric drive bolts securely.
   

1. Install the four front door window glass regulator track bolts. Tighten the front door window glass regulator track bolts securely.
   

You'll have to remove the door panel,yes the whole thing,and look for any broken or missing parts in your door latch/lock linkage.Be careful not to break any wires that power your windows/locks while removing the panel.It may be just a plastic clip that holds the linkage together has fallen off.Check in the bottom of the door well for parts that may have fallen down there. A manual from the library or online is a big help here.

Most likely some kind of repair to the door panel will be needed, they should'nt have fallen out, so it is best to remove the panel, it only takes about 5 minutes, worked on 100's of Mustangs like yours, that was an average time.