... with USB,SD, Bluetooth+Aux in Features:Car MP3 connection kits with USB,SD, Bluetooth+Aux inPerfect CD sound quality, no FM noisy. 16GB USB flash ... the radio's buttons, support Mobile music playing while connecting with Bluetooth All in one fuction, one main console can ... car models only set dip-switch and alternate corresponding. Compatible with: OEM Radio: VW, Audi, Skoda, Seat, BMW, Mazda, Nissan, ...