What's in the box:

BT 5.0 Module Adapter MP3 Handsfree Replacement for Volkswagen RCD210 RCD300 RCD310 RNS300 RNS310 MFD2 12-Pin Plug (Standard)

Features:
Replacement for Volkswagen for Skoda.
Just plug the 12pin connector into the socket back of your radio
You can just Insert this item to the back radio then Connect the red wire to 12V+, the black wire to 12V-.
Match your phone or pad to BT module.and Choose Aux from your radio, then you can use your phone to play music through car speakers.
You can hear music from your phone/pad/mp3(They should have BT function).

Compatible for following radio models :
Replacement for Volkswagen (do not fit Golf V and RCD200 ):
Delta 6/7, Premium 6/7, R100/110, RCD300/500, RCD-210/310/500, RNS-300/310/510*,
RNS MFD2 CD/DVD

for Seat:
Radio CD-1/2/3, PN-1/3, RNS-4, SE359/360

Specifications:
Material Type: abs
Color: white
Item Type: BT Car Kit
Special Features: car BT module
Item Size: 150cm
Model Name: 12pin plug
Fit for: For Volkswagen 12pin plug

Packing List:
1pcs BT adapter