The 2017 Partner radio has an AUX input (3.5mm jack) on the back of the radio unit. Peugeot did not always route it to the dashboard.
If you plug your phone in and nothing happens—no charging icon, no screen prompt—check the fuse box. The USB port and 12V socket usually share a fuse.
Critical information: The 2017 Peugeot Partner does not support CarPlay or Android Auto on the factory radio. MirrorLink was an option in some 2017 SMEG+ units, but it was buggy and obsolete. peugeot partner 2017 usb port location work
If you are connecting an iPhone or Android device for the first time:
Locating the port is only half the battle. The 2017 Partner’s USB system operates under specific electronic constraints that can mimic hardware failure. The 2017 Partner radio has an AUX input (3
1. Power Delivery (Amperage): The port provides a meager 0.5A (500mA) at 5V—the USB 2.0 standard. This is insufficient for charging modern smartphones under heavy use (e.g., running GPS navigation while streaming audio). A connected iPhone or Android device will show “charging,” but the battery percentage may slowly decline. The port is primarily for data (music files, hands-free calling via MirrorLink) and only secondarily for trickle charging.
2. File System Limitations: The port’s controller chip only recognizes USB drives formatted in FAT32. It will not read NTFS or exFAT. Moreover, the maximum partition size is effectively 32GB, though some users report success with 64GB drives formatted to FAT32 using third-party tools. The system cannot index more than 2,500 music files or nested folders deeper than 8 levels. The USB port and 12V socket usually share a fuse
3. Device Handshake Delay: Upon turning the ignition to “ACC” or starting the engine, the USB port is not immediately active. The vehicle’s Body Control Module (BSI) performs a power-up sequence: 12V sockets first (immediate power), followed by the USB port approximately 5–8 seconds later. If you plug in a phone before the handshake delay, the system may fail to recognize it, requiring a cable replug.
4. MirrorLink Dependency (Pre-Android Auto/CarPlay): The 2017 Partner predates widespread Android Auto and Apple CarPlay on PSA vehicles (these arrived in 2018). Instead, it uses the now-obsolete MirrorLink standard. For many users, the USB port will only play MP3/WMA files from a flash drive. Smartphone integration for maps or apps requires a specific MirrorLink-certified phone and a compatible app, a system notoriously unreliable in practice.