Here is a website that tells you how to dye the interior of the Mustang in particular and you can even buy the product there.
http://www.metromustang.com/Paint/PaintInfo.html
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Blueneonman - '95 5.0L Mustang GT Convertible | K&N Drop-in | FMS 9mm Wires | Hollow Cats | Flowmaster 2 Chambers | Subframes | 6-pt Rollcage | 14deg Timing | King Cobra Clutch | FMS Adjustable Clutch Cable | Coolest Neon Lighting on a Mustang EVER!
Homepage:
http://www16.brinkster.com/blueneonman/
Best time: 14.719 @94.87mph