Hi, RH annoyingly he can't remember. He went on EBAY and searched for Nissan car radio unlock pin code. You will need to take a photo of the message you get on the Nissan Connect screen of serial no. , device no. and date of manufacture. Husband was only charged 99p (gave £5). This was August this year, about 10 mins later had code, it worked first time. Sorry I wasn't able to give you the actual number.