ok so I installed my singer 250 alt amp and did the big 3 using knu 1/0 ofc. . the volts with nothing on stays at 14.6. I can turn it up full tilt and it ranges from 13.8 - 14.1.. So my question is why do my headlights still dim? It's not on every song either. I can play tech n9ne so dope or TI on purpose and its perfectly fine. I can play something with alot less bass like lil wayne god bless America and it looks like a light show. Am I going to have to break down and install a couple batteries or what? trying to avoid it because im running out of room. oh, im running a 12 inch zcon on a crescendo bc3500