I have a 1985 Wolfsburg Edition with the dual batteries but no sink
or stove. The ice box was missing when I bought the vehicle.

I would like to use the second battery for an inverter to run my laptop,
but I don't want to hook up the inverter directly to the battery with the clamps.
I can't find out where the ice box was supposed to hook up.
Any suggestions on how/where to hook up the inverter to the second battery?

Thanks

Tim