An individual sound system for vehicles comprising modules or pre-assembled boxes (1), containing the loudspeakers (3,3'), associated to the seats (7). Each box is integrated under the roof (5) of the vehicles and it is comprised into the roof upholstery (...

A joint for a roof rod antenna for vehicles comprising an anti-withdrawal device constituted by a snap ring (15) that engaging against a counterboring (7) and preventing the withdrawal of the rod (12). This impediment avoids the removal of the antenna but ...

A box for subwoofer loudspeakers (5) is located and tied in the space under frame (1) of any seat (2) for vehicles in general, exploiting space (4) created in the load-bearing structure of said seat and part of the space available in the lower zone (7).