Vents:
http://www.aleromod.com/forums/showthread.php?t=5350
Mine are done similar to Cybers. I just encased then in a cube of hot glue... its really not necessary. you can just bend the leds at a right angle and point them out the front, and drill a small hole underneath to run the wires. But i would put a small bead of silicone or hot glue on metal contacts... to prevent moisture/corrosion. (i have 1 on drivers side vent, 2 in each side of the center vent and 2 in the passanger vent) 4 in the pic, cuz i have reds and blues set up... two complete different circuits.
Doors:
http://www.aleromod.com/forums/showthread.php?t=8297
Little trickier, but easy to do... just takes a little time.