SO I am guessing that The GW Aux battery Kit does not switch this over for use when NOT driving.     I also did plug in the night before and get it nice and cold, but nothing while driving.  So maybe it is operation as normal.   LOL Now i just need to get the gas working 
 > Date: Wed, 11 Jul 2012 16:39:17 -0500
> From: jim.felder@GMAIL.COM
> Subject: Re: fridge on dc power
> To: vanagon@GERRY.VANAGON.COM
> 
> Correct. After about a tank of gas, the fins should be cool to the touch.
> 
> : )
> 
> Jim
> 
> On Wed, Jul 11, 2012 at 3:28 PM, Robert Mac Dowell
> <yakandhike@comcast.net> wrote:
> > Correct me if i'm wrong but I think the fridge only works on 12 volts when the motor is running.