FWIW - I run mine with 2 prong plug ins all the time with no adapter. I do outdoor photography and when I'm on a shoot I always have my camera battery charger (2 prong) plugged into the console outlet.
ORDERED - 2014 Hydro Blue Polar JK - VON 10/11/13, D - 10/21/13, D1 - 11/5/13, F - 11/19/13, I - 11/20/13, KZ - 11/25/13, KZM - 11/26/13
Wife's DD: 2013 Rock Lobster Red Sahara Unlimited
Black Leather, body colored hard top, automatic, 3.73 rear axle, LSD, trailer tow package 430N & connectivity group, remote start & automatic air