hey guys,hope all is well,just wondering if anyone knows how to insatll a voltage regulator?Ive seen a cwest universal unit on ebay,and im thinking of buying one as my lights dim when i recently installed my sub and amp in my my99 subaru wrx also when i have the stereo playin loud i notice that when i use my power windows the lights dim and my front lights dim a tinge when bass is kickin.any help from u guys would be great thanks heaps,cruzin'99.