I just went out and pulled my inverter out in less that 10 minutes. don't need to pull the center console just the back piece of trim. here is how I pulled it....
around the outlet is a small piece of trim with a screwdriver slot just above the plug. carefully start at the slot and work to the side pulling it off. just a couple spring clips holding it on. under this trim is 2 screws holding the inverter in. The center console aft piece of trim pops off by using thin screwdriver about a third of the way up on side on the seam for the aft piece of trim and work down, it pops off from bottom then swings up and off the top of console. the cover door stays on the inverter. That's it....the inverter just falls out.
now for full disclosure... I did this on my 2010, didn't break anything and looks new back together. don't hold me liable if yours is different. here's hoping that the inverter is the problem as it would be an easy fix but might be expensive if you have to buy the piece from dealer.
If you have trouble let me know and I'll do it again and take a couple pics. but it was easy.