I just bought my second Murano. The first was in 2003 and no a 2006. I've been reading all the threads on connecting an ipod adapter through the sat wiring harness. My 2006 says its pre wired for sat and I did locate what appears to be an unused connection behind the rear seat. My 2003 Murano had a button on the radio labeled SAT however my 2006 has no such button. My question is if the car is prewired and the wiring connection behind the seat is for sat , where is the control on the radio to select it?