Thanks everyone! I'm planning to do the hood vents same as the kidneys...

Hey Naz24 I'm ATLANTA M5 over at the M5 Board...

The navi knobs in the photo are some custom ones I fitted, MGW knobs originally meant for a Viper radio, but I got them to fit snug over the OEM knobs (had to sand OEM rubbery ones down just right). I also have a pair of the stainless knobs from Diny...M5 and X5 navi uses the same knobs, right now I have the custom MGW in the M5 and Diny's in the X5.

Also a guy on M5 Board just figured out there's a newer model BMW black/chrome ring OEM knob that works as an upgrade.