Yikes, we're DIY-ing a transit connect mini camper van conversion and messed up on the fan install. The fan is in, but we focused so much on measuring the size of the hole we were cutting that we didn't realize the high mounted third brake fixture was going to prevent the fan from closing all the way :( amateur hour here.
Does anyone know of any fixtures that lay flat on the roof? Or how hard it would be to have the third brake on the roof removed and have one instead put into the upper left door? It looks like our van has a spot for that already ...