I contacted Kicker prior to making the purchases.

They suggested the amp and speakers for max performance. I have a roadster and you can’t hear the music (top down) with the factory setup.

when i spoke to the tech, he had told me to wire the subs in series (see image). You only use 2 of the 4 wires plugged into the existing subs from the factory amp.

Wire the component speakers to the left and right channels of amp 1.
Use this amplifier with the Comp RT voice coils wired in series to each channel of amp 2. https://www.kicker.com/kxa4004-4-channel-amplifier


these are the other components that make up my system.
Kicker 44KSS6504 (4ohm)
kenwood head unit DNX 711 double din.



The sub images below are from another meme era post. I included them because it’s how I installed mine.

Kudos to the forum member that took the time to post these images originally.



If any any of this works for you, please all of us know that all, some or none of this worked for your setup.












Coupled with a Kenwood DNX711