I'm assuming you want something similar to this.
I did mine with individual LEDs. There are two vertical columns of 15 white LEDs on each false vent with a center column of 14 orange-red LEDs in the center. In the case of mine the white LEDs are wired in groups of 3 in series (+ to -) with a 150 ohm resistor and then each group is wired in parallel with each other. They are then wired to the parking light wire from the headlight above them. I agree that a relay is the best way to hook them up and am doing so as soon as I build my relay control board. For now they are wired directly and work fine but it is temporary. For the orange-red LEDs they are wired in groups of 7 in series due to the different characteristics of the LEDs.
A good link for figuring out your own wiring is here.
LED series parallel array wizard