Interesting product, it's true that it's nice to listen to his MP3 his vehicle on a magnetic tape in radio but there disadvantages of magnetic technology: Sound quality problem depending on quality car stereo (bad centering of the read head, interference ...) The product works perfectly on the stereo from my Citroën Xsara but not on that of my wife's 306 (continuous auto-reverse). But in terms of price, product to try ...