[Daedalus0101101]

I just have the Harmon Kardon system in mine and when I first got it I thought it sounded flat and had no depth. After I did a software upgrade it took a little time, but it sounded much better than it origianlly did. So I am not sure if the software did something, or if the previous owner on my CPO never used the speakers but it sounds a lot better and I am happy with the sound. Before, my previous vehicle ( non BMW) with a Sony system sounded better. I'd say now that it sounds just as good or better.