I spent the day tinkering with a new passenger seat in the van. First I had to pull out the old seat, then I started working on installing the new one - after several tries, I have something that sort of works, but drags the mounting hardware when the seat swivels. Still, I'll get smaller hardware (allen heads are deeper than bolts) and use that - I'll probably take the seat out to copy the mounting for the driver's side anyway.
I then played with some solar wiring, and ended up getting Vic to help me get everything plugged in. A bunch of wiring is hanging out, but it at least works - I don't think the solar panel was charging the battery properly, as it wasn't plugged in that solidly.