Need Gray Vinyl Dye, Any Suggestions?

[duffontap]

Does anyone know of a good color of vinyl dye for the graphite gray interior parts of a 40 such as the plastic part of the heater and the headrests?

I used 'Charcoal Gray' vinyl dye for the bench seat I'm installing:

http://i132.photobucket.com/albums/q35/duffontap/41ZRg4UxsCL_SL500_AA300_.jpg

But it's more of a navy blue than a gray and I will have to re-dye it. Any suggestions?

 

[Marco7]

SEM sprays:
http://www.levineautoparts.com/semvinandpla.html