Hello...I have an Alpine CDA 9856. An employee of Circuit City told me about this website, he said someone could help me with tips and tricks for tuning the system. I know nothing about car stereos but can follow directions very well. When I first got the head unit it was tuned for me then someone got ahold of it and now it sounds terrible. Tried adjusting the settings myself from the user guide but not sure what I'm really doing or listening for. Help....Heatherbelle
