Thats still way too much for what little he has in the trunk. I mean Damn I built my brothers car for under 6K with 1000watts to each of his 12in polk momo's and full component interior and dvd head unit. The Damn thing with dynomat throws beer cans off the roof, hood, and trunk. Its so clean and clear. Its also so powerful that we had a house party turned up his car speakers and used it for the music.
I designed his car like I design the sound systems I build. for the best acoustics and balance of Bass, Treble and Mids. 10k will get you all your parts at MSRP or more plus high priced installation. that guy got RIPPPEDDDD!!!