Yeah, you don't what a dome skylight then. Flat ones exist. Dometic maybe. I think @Lolaeliz has one.I haven't found one with a low enough profile (like the universal auto sunroof kits of the 80s and 90s). I often carry building materials, etc. on my cargo roof rack, and the universal sunroofs fit almost flush to the vehicle when closed. Flush when closed will result in the least amount of wind induced noise as well.
The target installation place is the flat metal section behind the cab (I think designed for that purpose anyway), and something like the AW 1033 appears like it would be perfect if it won't leak.
Do you know of any alternatives? I looked a boat hatches, but the sizes are odd for that roof panel, and those are really $$$.
I have this one. I put it in the back, using a DIY/ @Hein adapter. I believe they can make custom adapters if that helps with the other shylight @diytech is looking at.
Thanks. Yours isn't flat after all.
More than 3 years ago I installed a CRL 1530 in that uncorrugated section of roof just behind the cab, as in the pic you found, @diytech. No leakage whatsoever in that time. The 1530 was only ever so slightly curved and the roof flexed to conform to it very easily. I am not entirely sure that section of roof itself didn't have some small curvature to it. I think the notion of a marine hatch per @SteveSS is the way to go, they have much more robust frames than the 1530 and what else used to be offered for automotive skylights.However, they did say the install was complicated by the curvature of the CRL not fitting the flat sheet metal of the van.