custom box

[ninety1two40]

@94 Sentra_Xe

allright, well i re-tuned everything and it sounds decent for now, i just need a new amp asap, im getting all sorts of interference with my brake lights, turn signals and reverse lights, than i need this fuggin box out of my back seats haha

Probably a shitty ground connection or you ran your RCA wires alongside some power wires.