Wow, that looks a lot better in that car than I would have thought. I would have expected it too look too big and out of place, but it doesn't. I'll probably just bite the bullet and get the Heigh10. It does have some cool features, for one the screen is big and looks nice, the toslink output, you can add cameras, it has some performance stuff, vehicle info pages, and without losing anything the stock radio has.
BTW, that's a pretty awesome speaker install you've got going on.