I have a G35 coupe standard stereo and was wondering what I needed to get satelite in the car. The head unit has the satelite button so, do I just need the tuner and antenna?

 

I think it depends on what year your car is. I beleive the 2004.5 has a wiring harness that runs to the trunk making it "satalite ready". If you don' t have the harness, you can purchase it.

I bought the Sirus receiver from Grubbs Infiniti for about $ 250.00. They also sell antennas there but I had my stereo guy supply the antenna. The receiver mounts on the left side of the trunk under the spare tire cover. It just connects to the harness.