Hi All, Long time since i was on here, I have just purchased a mk4 Golf GTI, looking at a stereo upgrade and was looking for either a 2nd hand Sat nav VAG unit from another similar car or getting one of the better Double DIN Android / WIn CE touchscreen - GPS / WIfi / 3g / all singing all dancing radio / stereos on ebay as per this link: http://www.ebay.co.uk/sch/i.html?_o...4+golf+sat+nav&_nkw=mk4+golf+sat+nav&_sacat=0 Could anyone on here tell me if they have had any previous experience wether it be good or bad with these units at all? Build quality / functionality / installation etc... Many Thanks