After driving home for the last few days I've come to the conlusion that I need Sirius radio. I don't want to pay $400 for the BMW version but I do want digital and no FM sound. I have the AUX input install so I was wondering if I get a third party tuner with an output if I hook it into the AUX input would the sound quality be just as good, or pretty close to what I would get with the BMW tuner? I would be saving over $200 so its worth it.
