mirror lights

[cu2500]

So I just bought me a 2012. Im wanting to run some lights under the doors that turn on when I unlock the truck. The lights under the mirrors do that and stay on when you open the door and then fade away. Does anyone have any input where I can find these wires or a fuse or something I can tie into to do such a thing? Any input would help thanks guys

 

[Leaton24]

Just me but I would start at the mirror connector and work my way down from there