I'm purchasing a wrx 5-door, and the closest one the dealer could find...with the options i do want...includes a few accessories, that i don't really care about one way or the other. one of those is the ipod interface. yeah, it's cool...and yeah, i have an ipod that i could use with it. but i noticed on the site that the ipod interface isn't compatible with the sirius hook up...not cool. i know the ipod runs through the aux, and i'm assuming thats were the sirius would run through...hence the incompatibility. my question is...what's the best way to go about unhooking the ipod interface and hooking up the sirius?