It sounds so much better than the stock system. In fact when we pulled the factory speakers out of the doors, the passenger side was blown
I went with a Blaupunkt Hamburg MP68. It has all the bluetooth integration I wanted, while staying somewhat true to the German heritage. It has some silver on it, at least, and the color of the illumination matches the dash lights pretty closely, and the red goes along with the emergency flasher button.
I went with Crossfire Audio FX 6 components in the doors and a pair of Kicker Comp V/T 6.5" subs in the factory locations. These things aren't going to win any SPL contests, but they do far more than anyone would imagine for their size.