I am in the process of picking out a satellite ready head unit, and XM tuner, from Crutchfield. The sales rep on the phone said that in the Crossfire this involves some wiring under the passenger seat and putting the tuner there. I feel leery of this because I suspect Chrysler would say the warranty's off on anything that anyone else has touched. Obviously when you replace the radio there's no more Chrysler warranty on the radio, but if the radio people have to remove the seat to wire in the tuner. Could Chrysler say that invalidated warranty on the seat and whatever other wiring is under there such as the seat's directional controls?