The other day I just happened to lookup the model of my unit, and found it was a very expensive one. I bought a 2007 corvette and this was in it. (Avic-8000nex) I saw where I could update the firmware, so I tried. Went out and bought a brand new 16bg flash drive to ensure there was nothing on it, downloaded the firm ware and followed all of the steps. I originally did not take the 5000nex out of the 8000 nex folder, and it would not even allow the update to begin. Once I fixed my little screw up, the update began. It started at 0% (obviously) but then immediately went to -1% and said failure.
