Abstract: A sound transmission system of a motor vehicle, having an intake sound transmission device which can be coupled via a first tubular connecting element to an air intake manifold which leads to an internal combustion engine and via a second tubular connecting element to a vehicle interior, the first tubular connecting element being assigned a first switchable shut-off device, having a resonator device which interacts with the intake sound transmission device and can be coupled via a third tubular connecting element to the air intake manifold which leads to an internal combustion engine, the third tubular connecting element being assigned a second switchable shut-off device.

Abstract: In a device for providing wall ducts for conduits, tubing or electric cables for motor vehicles, each of the conduits, tubing or electric cables, in the area of the wall duct, has a coupler. Each coupler includes two coupler halves. First coupler halves, respectively, are jointly held in the device providing wall ducts. The first coupler halves are held together in groups of at least two by a bracket, and the coupler halves bundled this way are held in plugs, which are arranged in orifices of a wall.