Its mounted next to the glove box, to the right. I can't seem to puzzle out the function of this particular doohickey.
Cylindrical, mounted on a floppy swivel so it can pivot (as shown). The location and appearance (hard plastic shell) don't seem to scream out any real apparent function.
I give. What the hell is it?
(2006 2wd 5spd 4cyl standard cab)