[Tiara45]

Having the outdoor aft cushions reupholstered on a 2013 Tiara Sovran 45. I’ve managed to remove them all except the back cushions furthest aft as I can’t seem to access the backside of the fiberglass to unscrew the bolts securing them.  How do I do this?

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It looks like there is a removable panel in the back of the storage compartment below the seat but it is sealed so I don’t want to cut the sealant to remove if this is not the correct access point.  Other option could be to remove wood panel in large storage locker on transom but there’s wiring/electronics mounted to that so guessing that’s not the spot?

Any help is much appreciated!  Thanks