I am looking into getting sat radio. I have a sat button on my dash, does this mean I have the sat harness or do I need to buy one? What else would I need to buy/do to get XM radio?

Luv My G

 

Depends if your car is pre-wired or not. If your car is pre-wired, you can purchase the tuner antenna from:
http://www.infinitiwholesaleparts.com/en_US/
Install it yourself, takes about an hours.

Diamond Graphite/Graphite/Prem. pkg./Navi.
ASG 7-wire grounding system
Tint
Z-tube
K&N drop-in
Volk GT-C
Eibach Springs
http://ekaz76.home.comcast.net/myg35x.htm