I don't have room to fit a vault under my seats. I was thinking about putting it in the trunk, but I was told that was a bad idea because the trunk typically doesn't set off the car alarm if it's breached.
Yeah, mine didn't fit uder my seats either because my seat adjustment is located under there. (It's a manual adjustment in a pickup.)
I wrapped the cable around the seat mount, and just throw crap on top if it.