Now that I think about it, if you have a single battery setup, it may be in the rear behind the live well.
Reason I say that is if you look at the GS model, in the corner (starboard/stern area) there is a little piece of furniture which looks like a storage area so I thought. It does have a cup holder, but underneath is not storage, but the extension box to the battery cables to reach up to the seats where my dual battery and distribution panel are located. The GFS model does not show that little piece of furniture. To really be sure, I would contact the Bennington administrator, they will be glad to assist and are very prompt in their replies.
Hope that helps.