Lots of progress since I've last looked! Coming along great.
That DC/DC charger - are you planning on putting that in the truck, or the trailer? I'll likely need one of these in the future too, and space in both is at a premium...
Well... I was going to run it in the trailer. Use Anderson plugs and the wiring cable to run it from the front of my truck to the rear with an Anderson, then one from the rear of the trailer to the front with another Anderson, then plug it in along with my standard wiring, but evidently it also needs the blue wire, IGN (ignition) as well, for the LiPo. Which is something I overlooked. So now I'm not sure. And if I get rid of that, I'm not entirely sure what to run. I'm not sure what else to do, and don't want a single IGN wire to also connect that. So until I get an answer, and I'm searching for one, it's on hold.
I previously had a similar setup with a portable 100W Renogy.
If you don’t have a solar controller yet, I strongly suggest a Vicron with Bluetooth capability. Their app will show live solar input (wattage) and makes it super easy to check on the panel and reposition it for optimal charging. Even a slight tilt or rotate can make a huge difference and you will never know without access to live data.