There are screws in other places in a few. Do you still have the operators manual for it? The installation instructions are in it. If not, supply us a model number we can chase up a handbook.
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PeterD Nissan Navara D23 diesel auto, Spaceland pop-top Retired radio and electronics technician. NSW Central Coast.
Dunno if Cruising Cruze got the answer he/she wanted but if not you will find 2 or 4 bolts under the floor which hold the base of the fridge to the floor (2 or 4 depending on quality of instal). They will probably be either rusted or coated in bitumen. Also need to disconnect 12V wiring and gas line.