Directly behind the fan location in the alaskan is the main power distribution box...you can feed wire through to that distribution box and power the fan from there.
I installed 12v computer fans in the screen area between the screen and the plastic cover...they work sufficiently and don't hog alot of battery...they remove cooking moisture nicely and haven't loaded up on me yet...7 years installed now.
the fans are switched with a blue lighted switch on the face of the power panel