I have a 2018 2.7 XLT with the FX4 offroad package. I just swapped out the stock mirrors for some tow mirrors. The tow mirrors come with puddle lights installed on them. My question is if my truck is already wired for puddle lights in the cab or do I have to run power to them?? Also can anyone explain to me what these different wires are on this diagram. Thank you

 

Pin 10 of the ddm and pdm "SHOULD" have puddle but you need to activate with Forscan then test with mulitmeter.
D.