If you want a stereo that will grow with your installation...
Alpine CDA-117 is a good start. Add a PXA-H100 and you have enough variables/options to build an extremely competent system that could rival any.
Another one is the KDC-x995 from Kenwood.
I like these two units because of their digital signal processors. You can actively tune/choose crossover points, they have time alignment, and good enough equalizers. They both do well with ipods and iphones. I believe the KDC comes with parrot bluetooth already installed.
