Answer by  
                                                                                          dfgospgfj (164)
                                                            
                          
                          
                                                           You'll need an "old work" gang box (the kind with flaps). Find a location in your drywall where there is NOT a stud. Cut a hole in the drywall the size of the gang box. Push the box into the wall and use a screwdriver to open the box's flaps.