You can buy a Rockford Fosgate Amp Installation kit for anything from 24 - 174 dollars that will have all the cables and everything you will need, speaker wires, power, etc. They are very nice high quality cables, but you can shop around for something the fits your needs.
http://www.rockfordfosgate.com/produ...5&locale=en_US
You don't need any special cable really just speaker wire to hook the Amp to the Subs