While playing above my radiator from the grille opening, I noticed some of the Ty Raps holding the big wire bundle together were brittle and broke easily.

Might be a good thing to check.

There is also a light under there that has a lens you can rob for inside. I have been unable to buy a replacement.

Keep in mind when you go to replenish your Zip Ty stock, check the label and make sure they are UV resistant.