I always keep my OBDII Bluetooth adapter in the X. I use it on friends cars more than any of mine since I have a laptop rig W/ SSS/DIS ect.
I used it yesterday to pull codes on a coworkers KIA and came up with a bunch of Lean Bank codes. That told me vacuum leak, I went right to the intake and found a rotted hose letting a bunch of unmetered air in. Grabber her a new one on break at the local dealer and had it fixed in 15 min. She was mesmerized
It's a very handy tool for under 15.00............Thanks Ebay China!