The reason to buy the adapter: MP3 functionality in the standard cassette radio from Becker.
Why Radio not replaced? A modern Sony or others simply do not fit the classic cockpit! For me, the whole concept has to fit and is such a small tick from me. But now to the product:
MP3 player in the form of cassettes' in itself is a really good idea! SD card inside (tested with 2GB Micro SD card in the SD adapter (nonSDHC!)) And off we went. Previously, the device had to be loaded (internal battery) and be turned on via slide switch. The buttons on the 'cassette' itself will find this No attention. Via remote control can control all the functions namely as play-stop-forward Volume EQ ... Mp3s be played by the adapter in the absolutely satisfactory quality.
One shortcoming in my radio: The cassette disappears behind a door after moving. However, when I let the hand on the shift lever, I come despite this close, so that the infrared commands coming through. So some getting used to but absolutely ok for me. Running noises are not available.
Drawback: The battery lasts about 2 hours so with me. After that, he must ans MicroUsbKabel again. One can also make the cassette only via the slide switch. In other words, each cartridge to get out and make up, otherwise it is empty again and you can start its return journey without music! Because the nerves and better could have been solved (eg. Switching via the mechanics on the radio), a point deduction. Otherwise recommended but.