Need Help understanding how to install new subwoofer and amp to 2022 Lariat with B and O

[Glendawg619]

Hello, I recently purchased these items

Sub box and Amp Combo : https://www.amazon.com/KICKER-48CDF124-Subwoofer-Enclosure-Amplifier/dp/B096YDYDKW

LC2I converter combo : https://www.amazon.com/AccuBASS-2-C...-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1



I am aware that I will have to run 8 gauge power and ground to the battery in the frunk, but the rest is a bit confusing to me. Does the stock B and O amp already have low or high level input going into the amp that i would be able to steal to feed the new amp? or will i need to still splice into a speaker wire? Is there any other hardware that im missing to complete the job? any help would be greatly appreciated

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[Andrewbens]

I would call sound good but purchasing this would help you out a lot.
https://soundsgoodstereo.com/produc...-t-harness-compatible-with-2021-ford-vehicles