After fitting a new battery on my Nissan Qashqai jumped back in my car to be confronted with my sat nav stereo asking for a pin code.looked in my user manuals and found out the code wasn’t written down!!! So now no music no sat nav and no reversing camera great!!!! After a bit of searching I came across “Online Radio Codes”with all the great customer reviews so I was happy to go ahead and purchase a unlock code! The unlock code was emailed to me,I then entered it into my stereo and worked straight away first time no messing!! Happy days great to have my music back sat nav and reversing camera working again happy days!!