I am getting ready to install some Big Rig Ice Lights on my truck. I have to wire them into the Courtesy Light Wire. Can somebody tell me what color this wire is and the easiest spot to find it? I looked up some other posts about this but they were for older models etc and didnt really give me a good idea. I appreciate the help.

 

In the 2010 f150 the wire is violet on the foot rail driver and passenger side