I use the aux port in my cobalt religiously, but think it's so annoying how it's in the center of everything. I already hid my charging cable by running the cable under the e-brake and pulling it back up by the cup holders, and I just leave my phone in my cup holder.
I can't think of anything for the aux cable, though. I was thinking of getting a flat cable and running it through my cup holder, but that would be completely obvious. Is there a way to run the cable behind the head unit and have it come from the ground, up?