Sound apparatus and vehicular apparatus including the same

A sound apparatus comprising:

• an enclosure including an internal space and a protrusion part including an opening hole connected to the internal space;
• a sound generating module at the internal space of the enclosure;
• and
• a coupling part including a hollow part connected to the internal space, the coupling part being accommodated into the opening hole of the protrusion part,
• wherein the coupling part is detachably fastened to the protrusion part,
• wherein the sound generating module comprises:
• a vibration member at the enclosure;
• and
• a vibration apparatus connected to the enclosure to vibrate the vibration member,
• wherein:
• an interior material is exposed at an interior space of a vehicular apparatus, and
• one or more sound generating apparatuses are disposed at the interior material to output a sound to the interior space, and the one or more sound generating apparatuses include the sound apparatus,
• wherein the interior material comprises a hole accommodating the protrusion part of the enclosure,
• wherein the protrusion part passes through the hole of the interior material, and
• wherein the coupling part configured at the sound apparatus is fastened to the protrusion part at the interior space.