Granted, our 2015 Seneca FK is not the same as a K... but we all faced the same dilemma at one point in time finding a place for the trash.
For our specific situation, we are not all that keen on having a trash can able to be knocked over by a happy Labrador, so we found it a special place under the kitchen sink.
And yes, there is a drain pipe that sticks down under the sink that makes things a little tight - so I cut a small section out of the side of a Rubbermaid trash can... And all of our houses (stick, and motorized) have the kitchen trash can, under the sink!
...The Best part, is while underway, the trash can is still in the same place, and I don't hear the lame excuse that "I could not find the trash can" when someone leaves trash on the countertop.
Will our solution work for another floorplan? we don't know - but we love our FK...
Steve & Stacy with Jasper (Australian Cattle dog)
2015 Seneca 36FK
Custom 27' flatbed trailer hauling:
07 Toyota FJC & Yamaha Kodiak 400 ATV