It can connect the stereo 3.5mm audio from cell phones or tablets for audio aux output
It can connect the Type-C USB from cell phone for charge only (no data connect)
Applicable models:
Audi Series: A6L / Q5 / Q7 / A8 / S5 / A5 / A4L / A3 / A1 (original car with AMI interface).
Volkswagen Series: Tiguan Tiguan GTI high 6 CC Magotan, etc. (MDI-BOX interface original car with)