Ive been trying to figure out why my AUX doesnt work in on 06 Scion TC so today i ripped apart the dash to make sure everything was plugged in. I found a plug one with 22pins just hanging out (have no idea what its for SAT maybe?) And then one plug that isnt filled. The plug that isnt filled sits right next to the steering wheel control. Im trying to figure out why i have an AUX jack in the armrest but when i plug anything in it wont switch to AUX mode.