Spotify via wireless CarPlay

[SurfRaptor]

most likely this one:

"Stealth" Behind the Seat Subwoofer Plug & Play System Upgrade (All Factory Systems including B&O Unleashed)

Are you looking for a well-engineered, great-performing enclosure that goes behind your rear seat in your F-Series? If so, you have come across the right solution. What makes this enclosure unique is that it allows full functionality of the rear seat, without touching your subwoofers when lifted...

soundsgoodstereo.com

Yup that’s the one. Does this just increase the sub out put and then I would replace the door speakers? Or does this replace the entire amp and allow for better sound output through the entire system?

 

[ekalb]

Yup that’s the one. Does this just increase the sub out put and then I would replace the door speakers? Or does this replace the entire amp and allow for better sound output through the entire system?

This removes the factory B&O subwoofer and replaces it with their behind seat sub and dedicated sub amp. That's it.

It does not change the factory amp or output to any other speaker in the car.