Positive from the bulb to the orange wire, negative from the bulb to the blue wire, this will make them come on with parking lights and flash with signal lights. Can wire them up with just signals or just parking lights too. Pictures are hard to see but there is a space near the top of the revese light housing where you can place the red bulb and tape it in place (thats what i did).
I would like to see some done without painted lights, not sure how it will turn out.
Peace
Matt