I don't believe the kick wells are deep enough for a proper sub.
https://trailseven.com/collections/bronco-audio
Plenty of plug and play setups for sale, or to use for inspiration, and easy to follow install guides.
I did the full 200.4 / Kicker KS / SSV pods upgrade. And the 500.1 amp...
That's what I'm doing, I ordered the Trailseven Kicker KS speaker setup with the SSVworks Pods, and 200.4 amp (comes with DSP)
After install I'll do the forscan changes and then let the DSP do its thing to see how it sounds.
I have a 2025 non-BO, but still came with Sub. Eventually, I plan...
Technically, didn't trade, bought my Bronco from an IA dealer, and sold my Hyundai Tucson SEL w/AWD to a Hyundai dealer here in FL. Got a better offer from the sell, than trading. (Also, tend to get better $$ selling to dealership of the same brand).