When I ripped the carpet off the floor of my van, I found someone had
screwed down a tin cover into the plywood. When I removed the plywood, I
found a 4" dia. round hole through the floor and plywood, 2' behind the
passenger seat, above the fuel pump. Anyone know what this hole might have
been for? I see several screw holes around it so something was mounted
there. Of course it was never blocked off properly. Was there some kind of
option that would mount here that needed this hole? It's perfectly round and
doesn't look like a hack job.

Nathaniel