Hi guys, I have a 60 ltr Engel fridge mounted on the Engel slider - my only question is how do you mount / connect it to the floor, in the rear of the 105. I'm a bit wary about screwing it to the floor in case I damage something like wiring etc. Should I cut out a floor template in marine ply or similar and mount the fridge slider on that? Would really appreciate some advice (the rear kids seats are out and I don't intend to reuse them).