My '06 WRX Limited 5MT came with some "premium sound" system (isn't great sounding). I have Sirius in the car and I am sick of the FM modulator, especially in the Philly area because interference is rampant.
I am getting a new Sportster 4 to replace my older Sportster replay. When I re-wire the car for the new unit (uses 5v instead of the older's 12v) I really want to hook up to soem sort of AUX input? Does the stock HU have an aux input or am I stuck with FM?