I've purchased a boss bab 10-in subwoofer amplifier low profile. I'm trying to put it behind the backseat of my 2024 Tacoma I just wondering if anybody could help me and tell me if I have the right parts
Considering how low power the subwoofer is, that wiring kit should work fine. You may or may not need the Kicker Line Out Converter. The cheaper fuse holders in these kits are often not very good, but again, the sub is low power and will likely work fine in this case.
The Boss subwoofer has a High Level Input / auto turn on which you connect to the trucks speaker wiring (I'll add a photo with an arrow pointing to the high level input, they usually come with the small harness), which may work fine for this sub. Hard to say though, but, the Kicker LOC would likely work okay otherwise, or in the event the high input on the amp doesn't work well.