Personally I gave up and just ordered a $120 (total) Blaupunkt head unit (+install kit) from Crutchfield. It was the cheapest thing I saw with and aux-in (dual RCAs on the rear). I tried a friend's iTrip for about 5 minutes and that was all it took for me to make the decision. The install wasn't very hard at all; the most difficult thing was getting the factory unit out. Still needs some cable shielding (I'm getting a little engine interference in there somewhere), but the audio quality is well worth it.