Is there an external port for an ipod (or in my case, an itouch)? There is some port that says 90v/120W or whatever but is that just for charging? Thanks.
It looks like the factory GPS navigation unit that will be on some late 2008 onward SX4 also uses the AUX input to the radio. If you are likely to want this as a retrofit, it might pay to wait for Tim McCabe's answer to this clash.