The pics are working for me....
FWIW, I can't say that I've done it on a '95 or '96, so I can only go by the words of others and the schematics I have access to. To the best of my knowledge, it's never been anything other than a brown wire. It's possible that it's been re-routed through another bundle, but again, I would have no way of knowing it.
What you might want to do, (and the way I found the splice) is start by looking on the right side of that same opening for the Torque On Demand relay. The TOD relay will have 5 or 6 wires coming out of it, and is on the right side of the opening, behind the airbag. (I'll try to get the color codes tomorrow when I get to work) Follow that brown wire across, and you should be able to find the slice. That's my best suggestion....
The switch in the picture will work just fine. You will need to wire it up the way that's drawn in the sketch in the original post. Disregard the info on the back of the package.
For those looking for a somewhat nicer switch,
www.waytekwire.com sells some nice contoured rockers. Some of their nicer ones are made by Carling Technologies, who custom-manufactured some of mine. They're ultra-high-quality and will last forever.
-Joe