HELLO Fitting Caravan Auxiliary to Patrol

[Jim Snowy River]

Hi. Need to fit a Auxiliary wire from my 2011 gu patrol directly to the Fridge in the Caravan. What l need to know is as it can not draw power from any batteries. The only power it can draw is when you start the Vehicle it has direct power to the fridge and when you turn off the engine there is to be no power draw. Any help would be greatfull...........:animierte-smilies-f P.S. What l need help with is where on the Patrol does the Auxiliary wire hook to.......