I have a 2012 IS 250 and I have some questions about the sound system. I dont have ML. I have the stock NAV headunit. Currently there is a Kicker CX 600.1 ampnhttps://www.kicker.com/12CX6001. I have 2 10" Kicker Comp C subs https://www.kicker.com/comp-c-10-dvc-subwoofer

All the other speakers are stock. The 8" stock sub that is in the rear deck is no longer there. It was blown so I took it out and didnt replace it.

I have 4 speakers laying around from my wifes car. They are Kicker CS 6.5 2 way speakers . Could these speakers work with the amp and subs that I have in my car?

I know that there is a stock amp in the car and someone said it is connected to my amp via a LOC. Does this amp power all the speakers and the Kicker amp only powers the kicker subs??