Looking to add Ford door lights to my XLT, fairly sure they are 8 pin (power, heat, blinker, driver side auto dim, no fold or BLIS)
Is there somewhere to tap into in the door modules and then re program with forscan to achieve this, or will running new wiring be the easiest?

 

Do you mean the one like footwell light but locate on the door pointing toward the door jamb and the ground when you open the door? If that's the case do you want to control that just like your dome light? Do you also need a switch to control ON-OFF?
Please check my signature since nobody has a clue on that info.
I can get you the electrical diagram as well as how to wire it up if your vehicle is 2009 or older.