I used Green LEDs for my dash and clock illumination - nice green glow is easy on the eyes, mainly as the RS models came with a blue translucent shroud over the incandescent bulbs (yellow + blue = green). The LEDs give a better quantity of light but not so bright to be a distraction IMO. Don't forget the Ign. / Alternator light cannot be a LED - it will not work, must be a std. incandescent type. Everything else if the warning lens is coloured I used a bright white or a colour LED as the lens colour ie green with green, Blue with blue.