NOTE: A = Wired connection; D = medium speed CAN bus; P = MOST
| Pos. | Spare part number | Name |
| 1 | - | Battery |
| 2 | - | CJB |
| 3 | - | CAN to other vehicle systems |
| 4 | - | Head unit audio |
| 5 | - | Steering wheel controls |
| 6 | - | Spiral spring |
| 7 | - | Integrated Audio Module (IAM) |
| 8 | - | CAN to other vehicle systems |
| 9 | - | Infotainment Control Module (ICM) |
| 10 | - | Speakers |
| 11 | - | SDARS Module (North America Only) |
| 12 | - | HD Radio Receiver Module (North America Only - 2009 and later) |
| 13 | - | Audio amplifier |
| 14 | - | Rear headphone jacks and audio controls |
| 15 | - | AJB |
| 16 | - | BJB |
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