It is hidden behind the stock bumper, which is covered by the monster front air dam. Here's my post when I "discovered" it.
https://www.thorforums.com/forums/f4...ter-24206.html
If you see that silver tape when you look in the passenger side wheel well, you can then trace it to a point. I had to get out my borescope and see where it went. I found it by looking at some videos on youtube concerning the block heater and voila!
I will not lie, it was a pain in the butt to pull it out and re-route it.