This is a stupid, piddly question, but it's been driving me nuts! How does the light under the hood come on? Is there a pressure switch somewhere (like in a refrigerator)? My light hasn't worked in some time but the bulb is good - and, if I have the hood open when I are/disarm my car alarm, it flashes just like all the other lights do. So what in the world makes it turn on when you open the hood? I've looked all around the hood/engine area, traced the wire from the bulb as far as I could (not far, it goes into a bundle), and I've scoured my Deville Service Manual, I can't find a thing!