Product Code: RFK4 Price: Check Latest Rockford Fosgate RFK4 4-gauge amplifier power wiring kit Rockford Fosgate's RFK4 amplifier power wiring kit supplies everything you'll need to send power to amplifiers with fuse ratings of up to 100 amperes. Rockford Fosgate makes the 4-gauge cable from 100% pure crystal-oxygen free copper wire so you can count on maximum signal transfer. Details: amplifier wiring kit cables meet or exceed the American Wire Gauge specifications and requirements 17 feet of 4-gauge power cable 3 feet of 4-gauge ground cable 20 feet of 18-gauge turn-on lead wire AFS/MAXI fuse holder and 100-amp MAXI fuse assortment of wire termination hardware and cable ties