This installation frame for car radios provides a secure mounting option for 1-DIN radios in certain Renault models. It serves as a bracket for the dashboard, positions the radio in the opening, and keeps it securely in place while driving. Installation is done by aligning the frame with the factory opening of the specific model and inserting the 1-DIN radio into the frame until it clicks into place. After installation, the bracket secures the position and orientation of the radio, prevents movement, and ensures a flush finish of the front panel with the trim. Typically, the frame is used for retrofitting or when replacing radios, as the original mounting parts must be compatible with the new device.