Hello All! Im trying to get the tailgate open on a 69 Vista Cruiser that has been sitting for years with no back glass in it. Just trying to clean it out and get glass in it for now. Both release handles feel like the tailgate is locked. I'm trying to figure out if the latches are frozen shut, or if there is some kind of locking mechanism keeping them from releasing. I've never owned one of these before so I'm unsure of how it works. Couple questions Does anybody know if the tailgate window regulator has to be fully lowered before the latches will unlock? Mine looks down, but I'm not sure if its fully lowered. Am I not seeing some other kind of safety lock? I know it has a power back window. I do have the key but I'm unsure if the back regulator is working. To complicate things the engine is out of the vehicle and I am having trouble powering up the electrical system with no positive battery cable to try to lower it with the switch. Any way to lower it without power? Any recommendations of the best way to approach this problem would be much appreciated. Thank you!