THEYAWWE ISO to PQ Quadlock Power Adapter for RCN210 Radio BT Multifunction Steering Wheel Canbus for VW Golf 4 Passat B5 Old Polo

1. If your original radio is a big plug (QUADLOCK). Need to buy this decoder (large plug to small plug). 2. This adapter is used to solve the problem of protocol and Plug conversion. 3. Buttons not light up 4. Bluetooth can not work 5. Can not turn off even remove the key 6. Multifunction Steering Wheel 1)This adapter is mainly used to solve the problem of protocol and criterion. As for the steering wheel button function, Some car buttons can all use. Some cars have only a few of these buttons available.

The decoder is fine. This depends on the match between the car itself and the decoder. 2). The adapter is mainly used to solve The problem of protocol and criterion. It doesn't matter if your car doesn't have a multi-purpose steering wheel. It can also be used.
Packing: 1 x adapter The cable is tested before shipment and is in good condition.