I've been kicking around the idea to modify the sunglass holder to house my accessorie switches for my Hella 700's, undercarriage lights (aka "rock lights"). Future additions will be bed lights, back-up/side lights, two electric cooling fans...
In anycase, here's a pic of the modified holder with some random switches I have just for show. Within the next week or so, I'll be re-running all the wires I have to the holder.