I ordered a kicker amp and 6.75” subwoofer to swap the factory Bose sub out. I’m going to reuse the factory box under the center console, reseal it and fill it. I’ll wire it to the amp I’m putting under the back seat. $350 in it so far. Waiting until the screen I want is released (in may) before I dig into this project. I installed a custom kicker sub and box in my 15 LML and it was incredible for the size. Going for a similar setup on the new truck, but I haven’t seen any boxes that will fit that area yet. My research is saying to use the factory box and make it a little better.