Hi Peter. Is that the changer from the Almera Sport+? I think you can use changers intended for the same model, but they are coded. You'd need to take the changer and car into your local Nissan dealer who will code it all together for you for about £40.
If you have climate control then I'm afraid there isn't many options for you as it's all built in. The CD module does have a changer port, but I've not seen any changer intended for it. Do you have more details on the changer you're referencing?