I'm in the market for an E61, and right now I'm mostly dismissing cars with CCC iDrive because I think it's significantly more dated looking than CIC. The CIC retrofit is too expensive to be worth doing imo, but I'm wondering if an android head unit could improve things for less money. My main concern is audio quality, as I've read several threads talking about how the audio quality isn't that good, since it piggybacks off the car's aux input. Are there any good head units that don't have this problem? Thanks!