The cooler sat on the floor behind the passenger seat, as in this brochure shot:  http://www.thesamba.com/vw/archives/lit/85wolfsburgedition/page4.jpg

I don't know where the electrical outlet would have been.  Behind the driver's or passenger's seat?

James
Ottawa, ON

Date: Wed, 24 Jun 2015 10:52:03 -0700
Subject: Re: What do you use solar or an aux battery for?
From: dn92610@gmail.com
To: jk_eaton@hotmail.com
CC: vanagon@gerry.vanagon.com

if the 2nd battery is there for a cooler I can't see where they put the electric cooler... there's a 3rd seat with storage space behind the driver seat and the cooler won't fit in there
and yes I remember seeing all the wires/relay to get the 2nd battery charged but didn't see what and where the 2nd was hooked to...
oohhh I wish I kept the weekender and not letting it go...
mistake... and mistake...
:-)