Does anyone know of a modification that will turn off the interior lights, if left on, after several minutes ? It is a constant source of harassment that when my kids turn on their map lights they get left on when we leave the van. My only option is to keep turning off ALL interior lights before we exit the van. In that case, when we return with groceries, etc. we open the hatch to a dark interior that's hard to see and load. Not very convenient.