i thought yours was newer than mine, since you got a clear lense that goes over the plastic surround.
i used a rubber from under the shifter boot from an old honda car. I cutted to fit the hole.
i have done a DIY thread in this website, you can check out all the pictures.
i think you must register to log in.
http://forums.gtrcanada.com/viewtopic.php?t=10475
thanks for your post, it was very helpful to do my retrofit.