this has happened to a member before. Unfortunately its the base unit which is under the cubbyhole behind the passenger seat. You have been fitted with a german one instead of a UK one. If your car is a UK model then you need to go back to Nissan Uk and get it changed. Model no for the part is KE283-CDU01 and more info here viewtopic.php?f=17&t=13358&start=0
search under AndyC and german for more info viewtopic.php?f=10&t=5033&hilit=german