[vtwinsport]

Indeed that is what I am thinking. My shoulder belts mounts are in the way alright of those fine speaker boxes. I would have to go to 5" rounds and use a shorter box I make myself.
I'll try looking at that option. I know it would mean drilling into the floor for the anchor bolts as well the belts you mentioned. I was planning on buying new belts here in the late spring so I need to decide which is best- different boxes or belts.
thx