I recently returned to boat owership with a 91 Master Craft Pro Star. The boat has been fantastic so far. The previous owner had the battery in the stern by the gas tank. I would really like to relocate it to underneath the observers seat in the middle of the boat. Underneath the seat is a hole with a flange around it that i believe the battery cables should be going through. However it is plucked up and i haven't been able to get any of the cables through. Has anybody encountered this. I have thought about drilling out the hole but i am fearful of this since i'm not sure what exactly i'm drilling into. Is this even the best thing to be doing in the first place? I would really appreciate any help you can offer for this first time mastercraft owner.