In Polo my girlfriend still a VW Alpha Radio are sound on its own, the works, but does not play CDs or MP3. Since I always had Kenwood and the price also convinced he was ordered and delivered very quickly. The expansion of Alpha was without the removal tool to the problem, then much to me that the Kenwoodklammern the same shape as the alpha from and hey presto, he was outside and the new in it. It had only two cables are reversed that were already pre-assembled at the factory by Kenwood and the engine ran flawlessly. An antenna adapter for 2 Euros you should definitely order the same, so that the antenna connector is also in the socket of the new radios. Setting the switch on, clock and sound and there you go, with a huge difference to the old device. The sound is very good with almost too many options, the radio reception is much better than the old, the service is, if you take a few minutes, easily. A very good car radio at a reasonable price ... a just Kenwood.