Mines cost £877.60 GBP so far, roughly $1,620.
I'm going to see about getting it installed in the car today at a shop cos I'm not confident with the electrical stuff.
Plus I think I might have to get an amp to get the audio from the PC to my speakers as my current head unit doesn't have any aux-in ports, so it's gonna cost me a bit more yet.
Still, so far it's cheaper than ready made units with less powerful componants in that I've seen in online shop catalogues