I have noticed ever since I've owned my 382 that in warmer temps my "cold machine" runs a LOT. Leads me to believe that there is little or no insulation around the ice box bottom or sides. Does anyone have any info on this....is there any insulation and if not, how can it be added?Hope I don't have to hack it apart to do it...I have considered injecting foam thru small holes drilled but I'm afraid where it might end up or what damage it'll do.The foam does NOT expand with much force but I have not located any access so I wonder what is around the box.....anybody? Thanks in advance....Gene