I was just going to post just that. I have done alot of research on this site and decided to take the OEM XM plunge for our Murano. I ordered mine from Wayzata Nissan in MN since I had done business with them before for other MO accesories, and the prices are usualy impossible to beat. I got it yesterday and installed it and it does have a different antenna. Now the OEM kit is 2 seperate part numbers, the tuner, hardware etc, and the antenna. The antenna looks like a teardrop from the top and is a bit lower profile than the older OEM one. The antenna also is only a single wire antenna and comes with a remuxer that takes the one antenna wire and converts it to 2 wires so that it can be plugged into the tuner. I also used the XM PROMO code listed on the site and it still worked. Thanks a lot to all those here who helped, expecially jaak and the Florida guys. All the work you did helped make for a smooth install. I also used the nibbler tool to make the notch as jaak did and you can indeed still buy it at Radio Shack for $14.99.
If anyone needs the new part numbers, I can go find the boxes and post them. Thanks again for a great site.
Jay