Can't I just use a wire tap if I want to keep the functionality (I use the seats all the time)?
You certainly could… this is just a nice quick plug and play option that can be easily reversed if needed.
I’ve powered a 50 quart ARB with another 400W power unit but also a Goal Zero 400W with a 30W solar panel. As long as continuous draw didn’t exceed around 75W I could charge up the battery packs with the outlet in the rear. I did this before leveraging the power taps.