Knock sensor harness wired straight into electrical line ! What to do ?

Hello , it’s late , been out all day removing the intake manifold on my 2008 Toyota tundra ( 4.7 L v8 ) after a good battle I got it all out , and discovered an old mouse nest . I’ve been told Toyota coated the knock harness with Linseed oil ..great treat for mice . I also heard about a class action suit . Anyway my ( harness ) has the primary end ( the top end ) wired straight into an electrical line ( containing many wires ) . I don’t have a plug . Has anyone else had this issue ? If so what’s my recourse ? Strange Toyota sells harnesses with a plug yet mine is not configured that way ! Could sure use some advice , I’m so far in now , no truck , and I’m toast ! Anyway I’ve never tried a forum before , but I’m completely at the mercy of a huge Toyota dealership bill …or fix it soon . Thanks so much for whatever you can help me out with !