Pinout [better] — Rcd330

The Volkswagen RCD330 (including the Plus and 187B/187E variants) uses a Quadlock connector

| Pin | Signal | Wire Color (Typical OEM harness) | |------|--------------------------|----------------------------------| | 1 | USB 5V (Power) | Red | | 2 | USB D- | White | | 3 | USB D+ | Green | | 4 | USB ID (For OTG/CarPlay) | Yellow (Crucial for iPhone) | | 5 | AUX Left | Blue | | 6 | AUX Ground | Shield/Bare wire | | 7 | AUX Right | Orange | | 8 | USB GND | Black | Rcd330 Pinout

The Quadlock is a large, square plug divided into four distinct sections. Each section handles a different vital sign of the car’s ecosystem. The Power Block (Section A) The Volkswagen RCD330 (including the Plus and 187B/187E