Hello all, I bought the Mopar splash guard /mini mudflaps a long time ago. Just tried fitting them with the supplied parts, and it looks like there is something not provided..... The front ones are designed to just pop in with some odd looking plastic rivet. The instructions show some weird clip that is not provided with the set. Anyone got any ideas? It's the wing nut looking image ? But the rivet is plastic! Dig 4 with the little 2x next to it? What is it ?