See also:

Input volume
Adjust the input volume in the RSE menu, under A/V AUX input volume. ...

Spots on interior plastic, metal, or wood surfaces
Cleaning interior plastic components should be done with a cleaning agent specially designed for this purpose. Consult your Volvo retailer. ...

Modifications
If you are considering modifying your vehicle in any way to accommodate a disability, for example by altering or adapting the driver's or front passenger's seat(s) and/or airbag systems, pleas ...