When assembling to video tutorial first noticed that the narrow, open end of the ribbon cable gland to bend down to the GPIO ports when the screw at this corner also attracts little. After assembling it turned out that the housing hole at the jack is too small for normal jack Audio + Video. Hief probably only fit small headphone plug. In the event that you want to connect a ribbon cable to the GPIO ports, an additional set of screws is included. In this, however, the screws are unfortunately too short so that the housing can not be screwed without mounted ribbon cable. Otherwise, the plug of a commercially available 40-pin ribbon cable is too high for the housing. Here the plug must first be dismantled. If you try to mount then the narrow part of the grommet of the housing is also just canceled. Unfortunately, the long wait has not paid to the delivery of housing.