Please keep in mind that I'm not finished with this retrofit yet, and I appreciate any input from more experienced users.
- I want to have two USB ports. One for media drive, one for wireless CarPlay.
- It's cheaper to retrofit USB HUB than to replace standard USB port (5Q0-035-726-F) with CarPlay-enabled port (5Q0-035-726-E).
- VW USB HUB 5G0-035-953-D (paid $6 for used one)
- USB HUB holder / mounting bracket
- USB port on a HSD cable https://s.click.aliexpress.com/e/_AFY3Kw ($5 from AliExpress)
- Fuse terminal for the fusebox
- 4-pin red connector to power the USB HUB
- Usual stuff, like wires, isolation tape, heat shrinking tubes.
HUB power supply pinout (red plug)
1 - +12V (Red/Blue) to fuseholder C, fuse 16 (7.5A) 2 - GND (Brown) MIB, Quadlock, green, pin 4 3 - N/A 4 - +5V trigger (White/Blue) MIB, Quadlock, green, pin 3
Adding circuit to the cabin fuseboxBest to disassemble dashboard elements on the drivers side. This will allow you to release the cabin fusebox from its mounting points. Accessing rear of the fuse box will allow you to insert new terminal for the additional fuse in slot 16. You can use zip tie to guide the terminal into the correct place.
Check how I've done it when installing RVC-High camera wiring @ 21:25.
Connecting GND and +5V triggerThose two lines are coming from the MIB2 main unit in the glovebox. Some vehicles already have those wires guided with the HSD cable to the USB port (as a part of HSD4+2 connector). You will need to unlock the original HSD connector, remove those two wires, and place them in the red plug.
Green - to MIB main unit Purple - to USB1 Brown - to USB2 Black - to optional accessories
Module: 5F (Information electronics) Coding → Long Coding → Byte: 19 → Bit: 6 → enable Coding → Long Coding → Byte: 19 → Bit: 7 → enable Adaptation → Channel: Interface for external media activation - connection 1 → activated Adaptation → Channel: Interface for external media activation - connection 2 → activated