I had this unit fitted to an 07 Vectra to replace the factory fitted double Din unit along with the Kenwood OEM steering remote adaptor and fascia fitting kit. The reason was to provide mp3/ wma/ aac file playback and ipod connectivity via the the optional accesory lead. After a lot of problems with the supply and fit company, initially arriving with the wrong (Corsa) installation kit, the unit eventually fitted the Vectra dash.
Whilst the sound quality of this head unit is very good - the menu system is over complicated and very fiddly to access and there are very limited status icons on the display screen, so if you inadvetantly hit the random button or scan setting there is nothing on the screen to tell you that you are in either mode. This seems a missed opportunity, as given that it is double din size- for some inexplicable reason the actual display is only the same size as on a standard unit.
The main problem is the infuriating cd reader. The unit takes over 20 seconds to read a burned disc with 10 album folders on it, which is liveable, but then does the same again each time a traffic announcement cuts in. worst of all is that despite previously reading a file or folder - it often cannot read it after switching between tuner/CD or after a traffic announcement - it just becomes stuck in reading mode. This also frequently happens when using the random facility and frankly this is unacceptable on a unit of this price. I am currently waiting for a reply from Kenwood and hopefully and explanation as to why this happens. Personally I was happier with the performance with a much lower spec JVC unit fitted to my last car which read any disc in an instant.