OK thanks guys! The cig lighter in the boat is on a 20a fuse. Off to Rat Shack to see if they have anything I can use. I just don't recall seeing the cig adpaters having an amp rating before.
These modern bass boats have tons of electronics and a rather large fuse panel for all of it... I've got extra accessory slots and switches unused, but it seems most things are easiest plugged right into the cig lighter. (spotlight, camcorder, etc) Need the radio for when football season starts up since Sirius picked up NFL radio.