John, I dont think I ever told you to put the graphic on the BLACK pads!It's feasible, to an extent.
In order to sew well, items must be a certain size in order to maintain detail.
I'm limited in my design area to about 4" x 2".
An outline of the sub that small would not look good.
I can do what is shown in the picture, but we must make concessions for placement.
This is the actual completed design that is ready to sew. Colors can be whatever you want.
Let me know.