i hooked a system up for my mom in her whip with a single l7 ported with a orion 2400 amp.. theres no head unit currently and its hooked up through the stock head unit with a speaker wire to rca converter on the rear speakers since the stock unit has no rca outputs... how come ill be by the amp and have both rcas input in the input and it will barely hit like it should, and once i unplug one of the rcas its 3 as loud... maybe because that converter i am using isnt putting out enough volts to the amp maybe? it doesnt make any fucking sense to me. thanks, should i just get a head unit, and a line driver/volt booster thing for her and be done with it?? will that solve this?