Put a real nice Clarion touch screen with nav and blue tooth in my ST, love it but one thing bugs me, cant figure out how to get the display to dim with the dash lights. To bright at nite and to dim in day unless I adjust it manually which is another reason to take my eyes off the road. Anyone know what wire I would tap into from the factory wire harnes. The radio has an orange and white "illumination wire". Saw on a harger web site somone recomended tapping into a purple wire on the passanger kick panel (pin 26 in a brown wire clip) for a Dodge charger.