==Headunit==
The head unit found in most models is manufactured by Clarion and is slightly less than double DIN height. ===Security===The head unit is married to a car and will not function in another car unless it is first divorced and then remarried to the new car. The Additionally, because the head unit may requires the SID in order to function, it cannot be used in anything but the 900 and 9-3. ===Media===There are primarily two types of head units available, one offering AM/FM and a cassette player, and radio or another offering AM/FM and a single CD and player. The European model offers RDS information such as radio station information while the US unitsubstitutes a weather band option.
==CD Changer==
An optional trunk mounted six CD changer was available for the 900 and 9-3.
==Available Factory Systems==