Suzuki / Honda 20-Pin Multimedia CD / Navigation Head Unit Connector – OEM MX34020SF1 / MX34020PF1
Direct OEM-specification replacement for the JAE (Japan Aviation Electronics) 20-pin wire harness connector used on multimedia head units, CD players, and navigation systems across Suzuki and Honda platforms. Cross-references JAE part numbers MX34020SF1 (female / socket) and MX34020PF1 (male / plug). Uses the 0.7mm contact series in grey nylon housing — a non-waterproof interior connector for the high-density signal harness connecting the head unit to the vehicle’s audio, navigation, and instrument cluster circuits.
The 20-pin JAE MX34 connector is the primary harness interface between the head unit and the vehicle’s body harness on Suzuki and Honda platforms. It carries audio signals, navigation data, reverse camera trigger, steering wheel control signals, and instrument cluster communication on a single 20-pin connector. A damaged or corroded MX34020 connector causes total head unit failure — no audio, no navigation, no reverse camera — or intermittent signal loss on individual circuits. The 0.7mm terminal is easily damaged during head unit removal if the connector is pulled without pressing the release tab.
| OEM Number | Type | Application |
|---|---|---|
| MX34020SF1 | Female (socket) housing | JAE MX34 20-pin female — harness side |
| MX34020PF1 | Male (plug) housing | JAE MX34 20-pin male — head unit side |
| Pin Group | Function | Failure Symptom if Open |
|---|---|---|
| Pins 1–4 | Audio output (front L/R, rear L/R) | No audio from speakers |
| Pins 5–8 | Power supply, ground, ACC, illumination | Head unit not powering on |
| Pins 9–12 | Navigation / GPS data bus | Navigation system fault |
| Pins 13–16 | Steering wheel control, reverse trigger | Steering controls inoperative, no reverse camera |
| Pins 17–20 | CAN bus / instrument cluster communication | Instrument cluster display fault |
| Attribute | Detail |
|---|---|
| Pin Count | 20-Pin |
| Contact Series | 0.7mm pitch (JAE MX34 series) |
| Housing Material | Nylon, grey |
| Sealing | Non-waterproof (interior application) |
| OEM Part Numbers | MX34020SF1 / MX34020PF1 |
| Applications | Multimedia head unit, CD player, navigation system, instrument harness |
| Compatible Brands | Suzuki, Honda |
| Terminal Included | Yes |
Q: My Suzuki Swift head unit stopped working after a DIY removal — could it be the connector?
A: Yes. The 20-pin JAE MX34 connector is the most common failure point during head unit removal on Suzuki and Honda vehicles. The 0.7mm terminal is easily bent when the connector is pulled without pressing the release tab. Inspect the connector before replacing the head unit.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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20 Pin Connectors
