I use the 2 short metal cables with the plastic latches to secure my helmet using the rear seat. Today as I was pressing the seat down to close it I felt the plastic clip get stuck under the latch. I can't seam to get the seat to come back off and the key turns freely. Any ideas? I tried pulling really hard and pressing down on front but no luck. I ended up having to cut the cable to remove the helmet but still have the back seat stuck.