What does the single DIN and double DIN means for VW stereos?
DIN is an acronym for Deutsches Institut fur Normung, i.e. German Institute for Standardization. In this particular case, it is used for specification of different standards of car stereos used in VW/ Audi / SEAT/ BMW and other European cars. If your car stereo is about 2 inches / 5 cm height, then it should be considered as Single-DIN. If it is about 4 inches / 11 cm height, your car stereo is Double DIN.