Newbie hear looking for advise after searching for quite a while I bit the bullet on one of these all singing dancing double din head units that that seem to be everywhere at the moment from Honghong I did have reservations about buying this but did see a post on the Audi forum from a member who had installed what seemed to be the same unit, and when I read it had a Samsung processor I decided to take the plunge I paid £340 great price fitted it yesterday all plug and play started it up and it was brill, tried the hands free via Bluetooth excellent despite no external separate mike, DVD worked fine in fact was well impressed the sound was better than my stock system the only thing that didn't seem to work was the satnav it was saying no software found despite having the SD card inserted in. any way I was playing around with it tuning radio stations ect and it has gone off fuses are ok I pressed restore button and the lights at the entrance to the dvd/cd slot light up briefly then go out and also there is a quiet ticking sound when you press the power button
