I bought a beautiful '19 Bennington 23SSBXP. The original owner had his dealer install a "power pole" shallow water anchor. I used it once, pretty slick but because it's installed on the deck and about 6' high it won't fit under my touchless boat cover. So I removed it. The only issue I have is I can't figure out how to get to the nuts that hold the bolts that hold the bracket to the deck. The aft 2 nuts are visible and I can get to them, but the remaining 4 I can't see. There is a metal cover place below the deck that rivited into position. Since it doesn't appear they have even been tampered with, I suspect the dealer installed it another way. Any ideas how to get to those nuts.