That's a lug connector - you know, the kind that attaches to a screw contact. Except, for some weird reason, instead of using a female spade like needed here, someone twisted the forklike "tines" onto the cigarette lighter socket they jammed in.

High quality work on this boat - all but a couple of original factory connections to the stern light were using the marine rated, highly technical and corrosion resistant "twist and electrical tape" method. Of course the tape is a sticky mess and it was pretty easy to dismantle.

Later I'll be making some kind of fuse panel and bus system for the wiring and properly heat shrinking or putting liquid sealant on the connections after they are soldered.

After moving the deck to the back of our yard and supporting it with wooden boxes and props, it was time to put the tools away for another time.