Car: TYPE R GT,58 PLATE.
Join Date: 1st December 2010
Thanked 135 Times in 131 Posts
The lighter only comes live when ignition on/Car running so all you have to do is connect the 12v live (possibly red) for the led to the 12v power for the lighter and same for the negative (possibly black) to the negative side for the lighter.
So when you have done this your lighter and the led/light will work when the ignition is switched on.
I know that you wanted it separately but that's the easiest way and you will not really notice it being on.
Last edited by burgerking1972; 17th February 2014 at 21:41.