I did look, but it didn't look like it would separate. It looked like there was molded plastic/melted plastic used to hold parts of it together. I can go take a closer look though, I still have the OEM grill.
Regarding the window trim. If you are patient and have had success with vinyl, then go for it.
I've built engines, transmissions, differentials, and made my own PCBs and write firmware. For the life of me, I cannot do vinyl. I tried to install it today after washing the truck. I made it through the 1st piece on the first window, realized it doesn't really fit right without heat guns and knives to trim and I threw that ****** in the trash. I loathe vinyl to begin in, and I loathe vinyl in precut kits that doesn't properly line up.
So i guess if I want that chrome deleted, I'm goign to have to take it to a shop. fk vinyl