boss BPS1RS rocker switch Bluetooth receiver, BANDA 400.4 amp, and PYLE plsq12d 12 inch square sub

in this video I test my new boss Bluetooth audio receiver BPS 1RS
by connecting it directly to a mini amplifier.. We only used two of the four available channels on the amplifier.
bridged to a single 12-in pile square subwoofer..
so essentially we are pushing 200 watts through this 12-in pyle subwoofer..
And it's making a lot of obnoxious Bass noise but I like it..lol
The plan is to put together a comp
act system that I can transfer to my neighborhood vehicle 2002 Gem car four seater golf cart type EV for fun cruising without taxing the EV battery too much..
I have a LifePo4 4s battery to use as a separate 12v car battery and power the stereo.. This 12 volt battery will be trickle charged from the EV battery