Sorry i havnt got you the pics of mine yet E4. I just have been so busy at the house this week. I havnt been getting home till 9 or 10 at night and im beat.

My sub box sits in front of the hump and its actually bolted to the hump.

Yes you can screw into the floor but i would look in the V drive and see where the hoses and cables are at going to the divers area. Measure the width and then use a straight line to see where that channel is and avoid it.