You should not be using vinyl prep on the console - just the rubbing alcohol. My guess is the vinyl prep is reacting with the plastic and causing your issues.
For the console (not the arm rest - that you should use vinyl prep on - I recommend removing it from the console, the paint you use for it and the console are two different paints), you should clean it with soap and water using a mild scotchbrite pad, make sure to dry it (it MUST be dry), clean it with rubbing alcohol (be quick, don't go crazy - the goal is to remove any final wax or grease) then spray it with lacquer dye in the color that you want (NOT vinyl dye). I also *highly* recommend that you wear gloves, like the nitrile ones. You do not want to be touching your just-cleaned parts with your bare fingers, you will transfer oil back on and cause the paint to react funny.
Use these instructions (they are for a Fox, but still apply):
[video=youtube;OvyiK57uzuo]https://www.youtube.com/watch?v=OvyiK57uzuo[/video]
This was me painting a tan console to white:
Before:
During:
And After:
Also, I'm not sure what paint you used, but you should you be using lacquer dye for the plastic pieces, and vinyl dye for the vinyl pieces. I purchased my paint from Late Model Restoration.