Scheme 1
Base or premium specification audio systems are available and switches on the steering wheel provide for remote operation in each case. The radio and electrically operated aerial are also common to both systems
An identical audio unit is installed in both systems. On initial installation this is matched to the appropriate system by selecting the STD or PRM switch position on the underside of the unit chassis.
Telephone controls incorporated in the audio unit facilitate installation of a GSM hands-free telephone system available as an option.