I bought the adapter to my smartphone / MP3 player to the auxiliary input on my Blaupunkt car radio to connect. I must say that the cable is really verabeitet well. In different renowned electric department stores I compared other adapter and could find no big processing differences, although these have partly far cost more than double. As the cables are a bit thin in my opinion in connection with the ISO 8-plug, I would, however, it faulted no great tensile or buckling load, but lapsed after installation anyway. Now I have the adapter for about 2 months in daily use and could not detect any sound interference, although I often move the cable. All in all a very good cable for a small price!