No problem man!! Just need to take out the second row light to get to the wiring and locate the wire that gets 12v's whenever the interior lights get triggered on with the doors opening. If that light comes on with the doors, then that's the light you will borrow power from for this mod!
Then run a wire from that second row light up to the front light that you want triggered on, then hook up the front light like I did in the second pic in post #10. Gonna use 2 diodes total, one for each from map light, silver band on diode towards the light you are hooking up, otherwise it won't work!
The wire i added to the front map lights is the yellow one in the pic, I also added a quick disconnect to it so that when I drop the light to work on it or take it out, I can completely unhook the power and remove the whole thing from the truck without having to undo all the work I did! I used some quick taps to attach the diodes to the wires, just basically crimped the diode lead with the wire in the quick tap, worked pretty easy!! If you take a good look at my second pic and build it pretty much like that, you will be fine!!
Once you get all that done, then you just need to tap the new wire into the correct wire in the second row light. Just use a quick tap to tap that new wire into the wire in the second row light that comes on with the doors opening and you are set!! Your map lights will come on with the doors and you will still be able to turn the map light on and off manually as well!!
Let me know if you have any other questions!!