"Hanging the Bin"
I have put the bin in the car but not used it yet. I was aware beforehand that fixing it might be tricky. My headrests, I find, are fixed (who knew?) and the little elastic loop would not fit anywhere useful. I almost always drive alone and wanted the bin on the passenger seat within easy reach. I have used a length of tape going through the loop on the bin and round the headrest, then tied. It. If I do have a passenger it will be easy to rotate it behind the seat. If I find it moves while I am driving I will use the velcro on its base to stabilise it. I am happy with my solution for now.