Got the Infinity Kappa 693.7i , now I need too order the 4 channel amp wiring kit. Already have the Infinity Kappa 462.7CFP in the door, and a Phoenix Gold Octane R5.0:4 4-channel amp. + the MMATS D200hc pushing a single 12" Kicker L7. I'm telling ya, right now I'm not in a big hurry too install, too damn cold outside for me. This is for the dailly driver. Should sound pretty good. Gotta have a sound system in the car I'm in everyday !!!!!!