ok gang...I have a couple soft spots under my back two seats.
As you can kind of see in the picture (lower right corner of pic), I have the motor cover with the jump seats on each side. The softness does not come out past the bottom of the seat on either side (did the ice pick probe test to make sure) and it does not get walked on. Each soft spot is about the size of a basketball an is directly under the seats. I'm going to get in there tonight and take the seats up and pull up the carpet and take a look at it. BUT, since it doesn't get walked on and I know the surface rot doesn't extend to any walking areas, what would be the fastest (and cheapest
) way to fix this?

As you can kind of see in the picture (lower right corner of pic), I have the motor cover with the jump seats on each side. The softness does not come out past the bottom of the seat on either side (did the ice pick probe test to make sure) and it does not get walked on. Each soft spot is about the size of a basketball an is directly under the seats. I'm going to get in there tonight and take the seats up and pull up the carpet and take a look at it. BUT, since it doesn't get walked on and I know the surface rot doesn't extend to any walking areas, what would be the fastest (and cheapest