What's This?

[Reel Kahuna]

Another friend had his boat painted and when he got it home this was laying on the deck? I don't think it came off his F115 .

[rodbolt17]

looks like it is off the control box/harness.
used typically to cap off unused trim wires from a 703 control.

[Reel Kahuna]

I forwarded your reply. He'll check and see. Thx.