The best thing you can probably do is buy a repair manual ($20 at an auto parts store). These will give you the basics on where all of the connection points are. Its also worth it to buy the little tool used for popping the panel retainer pins.
The switch panel you should just be able to pry out of the top - very thin screwdriver and just be careful not to mess up the edges. So that you can test without pulling the whole panel (you’ll need a voltmeter). Somewhere in the vicinity of the armrest/interior handle are a couple of bolts. The rest of it should be those plastic push pin retainers for which you’d want the panel tool. All of that if memory serves.