1.I bet your system is loosing low end audio , its its prob not as loud as the lower freqs could be. 2. LC6i has a feature called GTO (great turn on) , this will turn yours amps on and off with the ICC , currently is say your remotes are triggered by the ACC wire this has 2 situations that suck. 1.1hr keyless play would result in no audio(amps dont turn on) 2. if you turn your ICC off , your amps are still on and still draining the battery. 3. Lc6i is base level if you have no limit on cash , I recommend Rockford fosgates 3.sixty(easy to set up. comes with a mic you place in a few sports around the car and it sorts out all the soundstage to give a flat response), (new one coming out soon). for audiophiles I reccomend the audioson bit.one processor( this is tricky to set up and requires a spec am and other tools) but the result is a totally amazing transformation on the soundstage. will keep an audiophiles pants wet for long time! aftermarket h/us are good , but its up to you if you want to retain the factory look and controls (although a company called PAC , make a range of adaptors to allow steering wheel controls to operate aftermarket h/u's) it comes down to what results your looking for