yep, i used that turtle wax kit on mine 4-5 months ago and they are already back to being as bad as before. The kit has a sealer, but evidently, it's not so good.Very cool! Congrats on the new lens.
Sorry to be "that guy" but don't be surprised if it starts to yellow again within the next few months. Those kits are only designed to either fill in the imperfections or smooth out the lens surface. It does not reseal the lens at all. In order for you to get the lens to stay perfect you have to get off the original clear coat, then polish it up, then seal it with a plastic clear coat. Presta Products makes a lens sealer that you can use to seal it up. However, it won't work if there is any OEM clear coat on the lens.
Sounds like the answer Pilgrim, have you done yours yet--I have a 2007 also and terribly yellowed.Another thought - if you clean up the lens and THEN cover it with 3M Headlight film, you won't have problems with the lens clouding up again because the headlight film will protect it. Might not be able to cover the bump for the turn signal, but that's a detail.
X-Pel Headlight Protection - 3m Headlight Protection Film, Clear Headlight UV Lens Protector
My 07 Murano is one of the vehicles they offer a kit for.