Changer Control by 5L-Bus on the backside of the unit.
Connectable option are:
| Model | Description |
| KCA-S220A | CD Changer Switch-box |
| KDC-C471FM | 6 Disc CD Changer with FM Modulator |
| KDC-CPS89 | 10 Disc CD Changer |
| KDC-C719 | 10 Disc CD Changer |
| KDC-C669 | 6 Disc CD Changer |
| KDC-C469 | 6 Disc CD Changer |
| KDC-C469FM | 6 Disc CD Changer with FM Modulator |
| KDV-C820 | 10 Disc DVD changer |
| KDC-CMP59FM | 6 Disc CD Changer with FM modulator |
| KDC-C719MP | 10 Disc MP3/CD Changer |