Mile High
Sounds like the application is the same as the dye I uses on the last VX. I had never tried that on the roof rails or mirrors. I had in the past scotchbrighted the hood insert and used primer/paint satin black bumper spray with good results on the hood insert. Although I am a little chicken. When I removed the insert from the last VX several of the attachments pulled free from the insert. I did not have much success reattaching them. Also the pins from the heat blanket were impossible to find replacements for. So I'm kind of guilty procrastinating that part of the job.
When I used the die on the cladding. It looked like complete shtt,,,,,until I got to about three coats (complete dry between coats). But once I had it done it was so nice. After the dye job, all I needed to do at a wash was dry the cladding to make it look new. If I did not dry, the dye tended to hold waterspots.
In my opinion when the trim is black it really makes the whole thing just POP!
The biggest problem I had with the dye was around the fuel port door. If I slobbed any gas on it at all it would dull that area for sure.