Dual Amp 1/0 AWG Dual Amp Wiring Kit | Rockford Fosgate Dual Amp Installation. This amplifier kit is designed to install two amps in one system. This includes all necessary cables for proper connection; power, ground, turn-on and RCA signal. All cables in this kit conform to the CEA-2015 AWG specification. Amazon: rockford fosgate dual amp kit Amazon: rockford fosgate dual amp kit. Rockford Fosgate R500X1D Amplifier + Wiring Kit Bundle R500X1D 500W RMS Prime Series Class D Monoblock Amplifier + BAK42 Complete CCA 4 Gauge Amplifier Wiring Kit with 2-Channel RCA Interconnects. 3.4 out of 5 stars 5. $151 $ 151. 50.