The radio code supplied for my Nissan Connect (combined Radio / CD player / Sat Nav / Aux in / Bluetooth) worked first time. No going back for a second code or any such inconvenience Warning to other Nissan connect users. Despite this still being preferable to taking out the Nissan connect unit to get the serial number (so no stars deducted), to get the information required for the code, meant I had to enter 3 incorrect (guessed) codes first. When you do this the Nissan Connect starts a 60 minute timeout. This is not an elapsed time countdown, but an ignition on countdown. You will therefore need to have the ignition on for 60 minutes AFTER you find out the information required for the code before you can actually use the code supplied. Still better than the alternatives though!