I was not very happy with my first attempt to route the wires from the solar panels to the inside of the van but I found a very good and also very cheap alternative by using a plastic watertight junction box from the local Home Improvement Store. The only difficulty in this job is drilling holes in your roof to mount the box but in total this is not even a 2 on the difficulty scale.
This post is about installing a solar system in your van. I’m describing the details of solar panels, charge controllers and the bits and pieces that connect them to your house batteries. This is not a complicated job but requires some planning ahead and some basic knowledge of electrical systems. On the 1-10 difficulty scale I think this one is a three.