hey guys i just installed a jl audio 4300 4 channel amp "tight fit" on a set of mb quart 5x7 referance series componets in the doors and some mb quart 5x7 co-axils in the rears, they sound crytal clear and they scream, also added a kenwood interface for my i-pod and a kenwood sirius radio , i did the install myself and it came out pretey good , all i need now is a navigation set up adn i have every thing possibly to run off my indash dvd/cd player , im getting there