I drive an Opel Corsa Enjoy Bj. 2004. After that Siemens VDO original car radio has aufgegben the spirit I was desperately looking for a solution, a combination of a car radio from a third party that can be operated using the original steering wheel control. The "Lenkradfernbedienungsadapter OPEL Astra / Corsa / Vectra ..." has convinced me in the price. after wiring with the Sony car radio "Sony CDX-GT 430 U MP3 CD Tuner" I can listen to music even from my MP3 player and scroll quickly in many tracks on the steering wheel. Fast-forward, was as usual with cassettes, is also possible with all the original Lenkradbedieniung. All functions of Frenbedienung had to offer the original radio I have now with the Sony Radio only slightly faster in response time. If the phonetic key is pressed and held so the Lautstärkepegen rising continuously, the original I had to tap.