I currently have two 10" subs and a 4 channel kicker amp.
I bought speakers to replace the factory door speakers, I have a pair of Infinity Kappa and a pair of Infinity Refference 6x8s.

Where should I put the Kappas, front or rear, and should I amp them with the two free channels on the kicker dx400.4?
If I amp them, anyone have a write up on how to wire them. I have no idea how to do it, and couldn't find much searching.
Thanks

a speaker will sound better with additional clean power! put the kappas in the front doors and amp the front doors.