is this possible mga sir?

just this morning, namatayan ako ng makina due to lack of electricity. at hirap nang magstart, low-batt!!!

normally kasi walang sounds yun, as in deaf-silence while driving.
then i put in a set-up - HU, V12 amp, 1 boxed Sub, 1 sep. chop chop parts kasi kaya not total sound setup, basta tumunog lang.

Yesterday ko lang napagana totally un sounds then i went out. normal naman ang takbo ng makina, enjoyed the sounds i had. then this morning, nakalabas pa uli ako ng garage. suddenly, ayun na - pagtirik hindi na mastart.
namatay ang makina kasi bumababa ang idling pag naka-AC.
i waited for several minutes pa before trying again. thank God after a while nagkaroon pa ng onting cranking power to start the engine. nauwi ko pa uli un car.

un HU connected as ACC ng ignition. Power ng amp rekta sa + ng batt. grounding sa screw ng seatbelt.
another observation i got, every time pinapatay ko totally ang car including ACC, narereset un HU ko. Pag on ko iseset ko uli TREB and BASS.

thanks