@AnimeLVR
If you export the vehicle's '.yft' to '.yft.xml' using Codewalker's RPF Explorer (that's where I got access to the 'matDiffuseColor' line illustrated above) you will be able to edit the colours of the dash or maybe even experiment with changing certain parts of them by pointing to different textures/shaders etc.
There's a little more info on the subject in this post if you're interested