Wow, that is a good find! It certainly sounds cool, it looks like a pretty easy install, sort of a plug & play model. It even states that you would be able to use your steering wheel controls to skip songs and so forth, very cool. The Nissan/Infiniti Factory Service Manual that NICOclub has online will show you how to pull out the stereo to complete this simple mod.
Nissan also makes one as well, the problem though is the Nissan one is more expensive and you have to buy an additional adapter if you have the newer iPod or iPhone 3GS. The additional adapter is $30.
http://www.mynissanparts.com/p....aspx