Radio X1
| Pin | Wire | Function | 
|---|---|---|
| A1 | OG | Radio Class 2 Serial Data | 
| A4 | YE | FM Composite Signal | 
| A6 | PU | Remote Radio Control Supply Voltage | 
| A7 | D-BU | Steering Wheel Control Signal | 
| A8 | TN | Left Front Low Level Audio Signal (+) | 
| A9 | D-GN | Left Front Low Level Audio Signal (-) | 
| A10 | TN | Right Rear Low Level Audio Signal (-) | 
| A11 | D-BU | Right Rear Low Level Audio Signal (+) | 
| A12 | BK/WH | Ground | 
| B1 | RD/WH | Battery Positive Voltage | 
| B3 | WH | Antenna Enable Signal | 
| B6 | OG | Amplifier Mute Signal | 
| B8 | BN/WH | Left Rear Low Level Audio Signal (+) | 
| B9 | BN | Left Rear Low Level Audio Signal (-) | 
| B10 | L-GN | Right Front Low Level Audio Signal (-) | 
| B11 | L-GN | Right Front Low Level Audio (+) | 
Radio X2
| Pin | Wire | Function | 
|---|---|---|
| A | OG | Amplifier Mute Signal (UL2) | 
| B | GY | Radio Vehicle Noise Compensation Enable Signal | 
| D | D-GN/WH | Vehicle Speed Signal (Denso Radio) | 
| H | D-GN/WH | Right Audio Signal (U2K) | 
| J | BN/WH | Left Audio Signal (U2K) | 
| K | TN/WH | Audio Common (U2K) | 
| L | L-BU | Remote Playback Device Audio Common Signal (UE1) | 
| M | OG/BK | Remote Playback Device Audio Signal (UE1) | 
Radio X3 (U3Z), 7283-5862 (service: 89046847) connector. 6-Way F
| Pin | Wire | Function | 
|---|---|---|
| 2 | YE | Vehicle Identification Communication System Bus Request Signal | 
| 3 | GY | Vehicle Identification Communication System High Signal | 
| 5 | BK | Drain | 
| 6 | BN | Vehicle Identification Communication System Low Signal | 
Radio X5 (Denso Radio) (U65), 1376352-1 (Service: 88988104) connector, 8-Way F 025 Series
| Pin | Wire | Function | 
|---|---|---|
| 3 | PK | Voice Recognition Audio Signal (UE1) | 
| GY | Voice Recognition Audio Signal (UA2) | |
| PK | Voice Recognition Audio Signal (without UA2) | |
| 5 | PK/BK | Low Reference (UE1) | 
| BK | Drain (without UE1) | 







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