Standard pinout:
| Pin Number |
Pin Name |
Description |
| 1 | A1 | SCV |
| 2 | A2 | Mute |
| 3 | A3 | the reversing light switch. |
| 4 | A4 | Memory Power (12V direct from Battery). Connects the radio directly to the battery. |
| 5 | A5 | Power for Electric Antenna. Output from the stereo +12 V (maximum 150 - 300mA) power supply for automatic or electronic antennas. |
| 6 | A6 | Dial-light illumination (car side light circuit). +12 V input on the car when the lights are on. |
| 7 | A7 | +12V Main Power (Switched via Ignition key). +12 V with the ignition key is in the ACC or ON position. |
| 8 | A8 | Ground (Chassis) |
Car audio ISO connector B pinout
Connector B is used only for the speakers.
| Pin Number |
Pin Name |
Description |
| 1 | B1 | Right Rear + |
| 2 | B2 | Right Rear - |
| 3 | B3 | Right Front + |
| 4 | B4 | Right Front - |
| 5 | B5 | Left Front + |
| 6 | B6 | Left Front - |
| 7 | B7 | Left Rear + |
| 8 | B8 | Left Rear - |
Car audio ISO connector C pinout
| Pin Number |
Pin Name |
Description |
| 1 | C1 | Line out left rear |
| 2 | C2 | Line out right rear |
| 3 | C3 | Line out ground |
| 4 | C4 | Line out front left |
| 5 | C5 | Line out front right |
| 6 | C6 | +12v switched - maximum 150mA |
| 7 | C7 | RXD |
| 8 | C8 | TXD |
| 9 | C9 | Chassis ground |
| 10 | C10 | +12v switched - maximum 150mA |
| 11 | C11 | Remote control in |
| 12 | C12 | Remote control ground |
| 13 | C13 | CDC data in (bus) |
| 14 | C14 | CDC data out |
| 15 | C15 | CDC +12v permanent |
| 16 | C16 | CDC +12v switched - maximum 300mA (+A) |
| 17 | C17 | CDC data ground (+U) |
| 18 | C18 | CDC audio frequency ground |
| 19 | C19 | CDC audio frequency left |
| 20 | C20 | CDC audio frequency right |
Alfa Romeo pinout:
| A: Power | B: Speakers | C: Changer / special |
| 1. CAN B | 1. RR | 1. - |
| 2. BOSTER IN (CD) | 2. RR - | 2. - |
| 3. CAN A | 3. RF | 3. - |
| 4. - | 4. RF - | 4. - |
| 5. sterowanie anteny | 5. LF | 5. - |
| 6. - | 6. LF - | 6. sterowanie BOSTER |
| 7. +12 V BATT | 7. LR | 7. Tel AF+ |
| 8. Masa (-) | 8. LR - | 8. Tel AF- |
| Radio is connected only one plus, so do not turn off the ignition. |
9. Tel MUTE | |
| 10. RC-A | ||
| 11. RC-B | ||
| 12. masa | ||
| 13. DATA IN | ||
| 14. DATA OUT | ||
| 15. +12V niewyłączane | ||
| 16. +12V wyłączane | ||
| 17. masa | ||
| 18. CD audio GND | ||
| 19. CD audio L | ||
| 20. CD audio R | ||
| 13-20 CD Changer Interface |
correct
incorrect