THE 406 CDi is fitted with an AM/FM radio incorporating a single-disc CD player. The sound system uses six speakers, with two speakers located on the rear parcel shelf, two in the front doors and two on the upper dashboard. Electronic controls allow pre-selection of up to six AM or FM radio stations. Sound levels adjust automatically according to road speed. The sound system controls are placed within easy reach of the driver on the centre console, or on the steering wheel. The unit is PIN coded for security.