hey guys. i really dont have much knowledge when it comes to great sound. basically i have the standard 182 setup with the front speakers, the 'cabasse' HU and the 6 CD changer in the boot. My question is if i change the door speakers and add an amplifier would the cd changer still work off the remote behind the steering wheel and would the sound quality improve by much. I already have an amp and all the wiring kit as i had one fitted in my last car.