it really depends on what you want best way to do it for cheap is run the wires and install yourself you can do it with basic tools and common sense id be willing to be that if you could install and build your own boxes for as low as 150 or 200 bucks, but it does take common sense say i have 2 4x8 pioneers and 2 4x8 eclipses 1000 watt Infinity amp with PIONEER 12' subs i got it all for about 250$ with most of it going to the amp and subs