You need to get at least a 4 gauge amp install kit. You could go 2 gauge for a better current flow, but a 4 gauge kit will suit you. Also, to provide more power you should get your amp install kit from rockford fosgate if you haven't gotten one.I suggest the RFK4. RF's wires are pure copper so you'll have a better electric current flow thus more power. Streetwires is good as well.