the rectangular thing is for his stereo. Its his e.q. for his crazy system. There is a place out in LA called Traffic Jamz they did all the stereo work. They do most of the cars at the CES show is Vegas,

2004 Diamond Graphite G35 Coupe 6MT, Premium Package, Aero Package, DVD Nav

 

I noticed he's still running the stock head unit...does he really get good sound out of that thing??