SCUMAXCON Car Stereo RCN210 Bluetooth Lecteur CD, USB, MP3, AUX,SD port for VW Golf MK4, Old polo, Passat B5 with PQ Quadlock

1.The radio only fit for VW Passat B5 Golf MK4 Polo 4. Built-in Bluetooth function, easy connection to play music, making calls. It is plug and play for most cars. 2.USB port is at the front of the unit, connecting phone only for charging, it can not play music neither A-pple nor Android phones. 3.Language: English, support CD MP3 WMA player, USB, AUX, Mini SD card, Bluetooth; FM / AM(auto scan and store); 4 outputs, up to 8 speakers, 4x20W (MAX: 4X45W). 4.Packaging: 1 x RCN210 BT Radio, 1x adapter for PQ quadlock, 1 x Removal Tool. 5.For certain car models, the vehicle’s built-in protocols vary across different regions. Even if the wiring is correctly installed, a range of issues may still occur, such as Bluetooth errors, unlit button backlights, or malfunctioning steering wheel controls. Such problems are generally caused by mismatched CAN bus protocols. You will need to engage a professional technician to rework the wiring.