hello i need sort of assistance. I am a newbie and i am sorry in advance for asking something stupid. I have recently installed bit 10 D in my car. I have focal es 165kx2 components with focal ec 165k as the rear speakers and JL audio's W3 as subwoofer. The speakers are connected to the soundstream t1500 amp and for subwoofer I have got kickers amp. I have been to the guy who installed the equipment in the car but have been unsucessful in getting the desired sound. Any idea how i can work towards improving the sound quality after spending all the money on the equipment