I guess I'm opposed to it out in the open, but I am thinking maybe leaving it up there. The "sunglass holder" is too small for my shades anyways... I'd like to tap into the switch on the opener and find a nice small thin pushbutton switch. If I wire it correctly I can install the switch on the back of the mirror (I already have the factory cable management coming down for Mirror power and SAT receiver and Radar) that way it's out of sight in the cab.
I installed a 12" sub into my old 97 saturn a few years ago, and the sub didn't come with any type of remote rheostat where i could turn it down. The saturn was so basic, it only had rear defrost. I got a hold of another button that was a blank in my car and wired it to that, so it was a power switch. If I had someone in the car that still wanted to keep their hearing, I would turn it off from there, it worked really well for me. I don't want to have to run wire down from the ceiling to the console either, it was Pain enough to carefully tuck when I installed my radar.