They are wildly expensive though... Blaupunkt Bremen and the Continental one I put in my R53 are both very tasteful and far more affordable. The Continental one is actually available with a Porsche decal overlay too so it fits in very nicely.
True, and I might still do this - however, it's only got pre-amplified outputs, so I'd need to convert those to line-out, and I don't think that would do the audio many favours.
That would work if I still had the lower centre console, but I removed it to get a bit more legroom: