I would tap into other wires instead of the cigarette lighter. Instructions are provided at the link below. I also bought the same kit you did but I decided to add a button to completely turn off when needed. It required additional wire length and I had to go buy a button from PepBoys but the end result is that I can go completely stealth if needed. Otherwise, I'm wired to have the LED's at full power when the ignition is on and when the dash lights come on they dim.
http://cdn.shopify.com/s/files/1/017...-79135.pdf?406